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Eye-Saver Yellow


1968 Catalog

Pickett was an American manufacturer of slide rules characterized by all metal construction. The founders, Roswell Colvert Pickett and Arthur F. Eckel started out making all-metal slide rules in 1944 using magnesium and later evolved to aluminum as aluminum alloys became more machinable. Pickett slide rules were chosen to be used by the Apollo astronauts on their mission to the moon, as they were lighter than their wood core counter parts. Picket used a photo print on their slide rules, rather trhan being engine divided. A close up of one of Pickett artwork plates for the Texas Speed Rule is shown on the right, courtesy of Gary Rourke.
Picketts are remembered by many later-day alumni for their characteristic yellow 'eye saver' color. Pickett also produced all-plastic low-end slide rules in the waning days of the their life. When the company folded with the rest of the industry, the slide rules were going to be sold as scrap metal to Mexico, but were rescued by Dick Schwartzer and later sold to collectors over the last 25 years. There are thousands of the plastic Pickett models hiding in warehouses waiting to be slowly feed into the collector market.




Pickett PR-12 Projection Rule

ISRM S307
Pickett PR-12 Projection Rule
Made in USA - 8" long to fit on overhead projectors
Scale: K, A [ C, CI, B ] D, L
Back: non-reversible


Pickett (Projection_Optics) ED-26 Teaching Rule

ISRM 20.08.15.01
Pickett (Projection_Optics) ED-26 Teaching Rule
Made in USA - 8" long transparent plastic to fit on overhead projectors
Scale: K, A [ C, CI, B ] D, L
Back: non-reversible
Gift of the Robert Carlisle Collection.


REF Pickett PR-? Trig Projection Rule
Pickett PR-? Trig Projection Rule
Made in USA - 12" long scales
Scale: K, A [ B, T, S, CI, C ] D, L
Back: non-reversible
Note: The top scan is without a backing and appears opaque. The lower one has a cloth over it to show the transparancy.
Archive - Scans provided by Cassou Olivier Collection, France


REF Pickett PR-13 Log-Log Projection Rule
Pickett PR-13 Log-Log Projection Rule
Made in USA - 12" long scales
Scale: LL0, LL1, DF [ CF, CIF, L, CI, C ] D, LL2, LL3
Back: non-reversible
Note: The top scan is without a backing and appears opaque. The lower one has a cloth over it to show the transparancy and a linear scale for sizing.
Archive - Scans provided by Cassou Olivier Collection, France


Pickett B-1 Powerlog Bamboo Duplex

ISRM 22.09.13.02

Pickett B-1 - Powerlog Bamboo Duplex - ca.1950
Made in Japan by Ricoh
Note: The only Laminated Bamboo Pickett model. Modern logo.
Front Scale: LL0, L, A [ B, Cos S, SecT ST, T T, C ] D, sqr1, sqr2, LL0
Back Scale: LL1, LL2, LL3, DF [ CF, CIF, CI, C] D, LL3, LL2, LL1
Gifted by JoAnn Lynn of Washington, D.C. Joel J. Lynn Collection.


Pickett & Eckel Model 1 Deci Point Duplex

ISRM 23.05.18.24

Pickett & Eckel Model 1 Deci Point Duplex sn008796
Made in USA - Note:29 scales - ©1945 - Magnesium Stock
Front Scale: 3√ #1, 3√ #2, 3√ #3, L [ T, T, ST, S Cos, CI, C ] D, √#1, √#2
Back with Decimal Keeper scales: Digits, C' [ D', T', T', ST', S' Cos', DN ] RN-DZ/DZ-RN, √ digits, 3√ digits
Note: This early version is thicker than later models of 2, 3, 4 etc..
Gifted by Terry Kirkpatrick of Florida.
Pickett & Eckel Announce release of Deci-Point Slide Rule.
Radio-News March 1946



Pickett Model 2 Deci Log Log

ISRM 18.07.11.04
Pickett Model 2 - Deci Log Log Duplex
Made in USA - Note:27 scales - ©1945/1947 - Magnesium Stock
Front Scale: 3#1, 3#2, 3#3, L [ T, T, ST, S Cos, CI, C ] D, #1,   #2
Back Scale: 1/N1, 1/N2, 1/N3, 1/N4 [ Digits, CF, CI, C] Co D, N1, N2, N3, N4
Gifted by Philip Stanley of Worcester, Massachussets
Phil donated numerous slide rules to ISRM from his own collection. Phil is a trader and appraiser of Mathematical Instruments and appeared on 3 seasons of the PBS series, Antique Road Show. His business is called "The Analytical Engine".


Pickett Model 2-T

ISRM 15.07.07.02
Pickett Model 2-T - Deci Log Log Duplex snC026739
Made in USA - Note:27 scales - ©1945/1947 - Magnesium Stock
Front Scale: 3#1, 3#2, 3#3, L [ T, T, ST, S Cos, CI, C ] D, #1,   #2
Back Scale: 1/N1, 1/N2, 1/N3, 1/N4 [ Digits, CF, CI, C] Co D, N1, N2, N3, N4
Gifted by Steve Stewart. Slide rule belonged to his father R.L. Stewart
Rubber sleeve


Pickett Model 2

ISRM 14.09.08.02
Pickett Model 2 - Deci Log Log Duplex - sn3D07552
Made in USA - Note:31 scales (c)1949 - Magnesium Stock
Front Scale(Artwork #47): 3#1, 3#2, 3√ #3 #1, DF [ CF, T, ST, S Cos, CI, C ] D, DI, √#1, #2
, Back Scale(Artwork #183): N1, 1/N1, N2, 1/N2, DF/M [ CF/M, L, CI, C] Co D, N3, 1/N3, N4, 1/N4


Pickett Model 2-T - Dual Base LogLog Reciprocal

ISRM 18.12.17.01

Pickett Model 2-T - Dual Base Log Log Reciprocal Scale (1957)
Made in USA - 28 scales - Aluminum Stock, die cast braces
Front Scale: 3#1, 3#2, 3#3, DF [  CF, T Cot, ST, S Cos, CI, C ] D, DI, √ #1,   #2
Back Scale: LL1 +00D/-.00D, LL2 +.0D/-.0D, DF/M [ CF/M, L, CI, C] D, LL3 +.D/-.D, LL4 +D./-D.
Original Owner: J. Kingsley (on sleeve flap)
Gift of Karl W. Kornchuk of Caribou, Maine. Karl's ham radio call sign is N1WAQ.
Karl W. Kornchuk began his military career in the Marine Corps Reserve at NAS Alameda). He received an Air Force commission upon graduation from the Naval Academy in 1983 and went on to Undergraduate Pilot Training at Williams AFB, AZ (T-37s, T-38s), then on to Castle AFB, CA and Loring AFB, ME for B-52Gs, Karl then received a Master's degree from Embry-Riddle. He joined the Maine Air Guard in Bangor, ME, flying KC-135s at Hurlburt Field and in Iraq flying the RC-26. After retirement in 2011, Karl kept busy taking Electrical Construction and Maintenance and Wind Power Technology at Northern Maine Community College and received two AA degrees, and now volunteers as a tutor at NMCC. Karl writes "I like the concept of wind and solar but am opposed to government intervention and distortions of what should be free markets and mormal supply and demand with my tax dollars. I work part-time flying a Citation CJ2 here in Northern Maine - otherwise I'm on the tractor somewhere in the woods. I spent one summer cruise while at USNA aboard the USS Coral Sea (CVA-43) -- REALLY enjoyed the LOUD F-4s"

As a side note, the ISRM Curator worked on Phantom F4-J's while assigned to VF-161 Fighter Squadron aboard the USS Coral Seal in Vietnam from 1967-1969. A snappy salute to Karl!



Pickett Model N2-T - LogLog Speed Rule Dual Base Extended Range

ISRM 22.03.01.33

Pickett Model N2-T - LogLog Speed Rule Dual Base Extended Range (1959)
Made in USA - 28 scales - Aluminum Stock, Stamped square aluminum braces, round black logo, flat lens.
Front Scale (artwork #258): 3#1, 3#2, 3#3, DF [  CF, T Cot, ST, S Cos, CI, C ] D, DI, √ #1,   #2
Back Scale (artwork #259): LL1 +00D/-.00D, LL2 +.0D/-.0D, DF/M [ CF/M, L, CI, C] D, LL3 +.D/-.D, LL4 +D./-D.
Gift Of Philip E. Stanley Collection.


P&E (Pickett) Model 3 Deci Log Log Vector 1947 V1

S549
P&E (Pickett) Model 3 Deci Log Log Vector
Made in USA by R.C. Pickett & A.F. Eckel - 30 scales - ©1947 - Magnesium Stock
Note: No Logo at its introduction.
Front Scale: 3#1, 3#2, 3#3, DF [ CF, T Cot, ST, S Cos, CI, C ] D, DI,#1,  #2
Back Scale: 1/N1, 1/N2, 1/N3, 1/N4, DF [ CF, Digits, CI, C] Co D, N1, N2, N3, N4
Original Owner: E.N. Bulger (on sleeve)


P&E (Pickett & Eckel) Model 3 Deci Log Log Vector 1947 V1

ISRM 13.10.09.05
P&E (Pickett & Eckel) Model 3 Deci Log Log Vector, snC036119
Made in USA by R.C. Pickett & A.F. Eckel - 30 scales - ©1947
Note:Early Magnesium Stock with serial number on cursor blocks
Note: No Logo at its introduction. Gray Rubber sleeve.
Front Scale: 3#1, 3#2, 3#3, DF [ CF, T Cot, ST, S Cos, CI, C ] D, DI,#1,  #2
Back Scale: 1/N1, 1/N2, 1/N3, 1/N4, DF [ CF, Digits, CI, C] Co D, N1, N2, N3, N4
Original Owner was in New Zealand
Note: This is the identical model of one owned by Wernher von Braun when he worked at what was to become NASA. The original is in the Cosmosphere - International SciEd Center & Space Museum in Hutchinson, Kansas. His Nestler 37 is in the Smithsonian.
Gift of Phillip Rodley, Upperhutt, New Zealand.


P&E (Pickett) Model 3 Deci Multiphase Log Log 1947 V2

ISRM 13.04.10.02

Robert J. Smith, circa 1994
P&E (Pickett) Model 3 Deci Multiphase Log Log sn HC037844
Made in USA by R.C. Pickett & A.F. Eckel - 30 scales - ©1947 - Magnesium Stock.
Note P&E logo with text "TRADE MARK" around triangle
Front Scale (artwork D-11-1)
3#1, 3#2, 3#3, DF [ CF, T Cot, ST, S Cos, CI, C ] D, DI,#1,  #2
Back Scale (artwork E-10-1)
1/N1, 1/N2, 1/N3, 1/N4, DF [ CF, Digits, CI, C] Co D, N1, N2, N3, N4
Donated by Jeff Smith, the son of its original owner, Robert J. Smith.
Robert J. Smith (1923-1997). Born in Philadelphia, raised in Cleveland, died in Farmington Michigan. Bob was a die cast engineer & past president of the Society of Die Cast Engineers. He was a World War II Navy veteran who entered service before completing high school. After the war, he obtained his high school degree and went on to Case Institute in Cleveland studying mechanical engineering. Bob worked his entire life in the auto industry with "Tier 1" suppliers to the Detroit major manufacturers. His son writes: "A brilliant engineer, he would be proud to have this old engineering tool displayed at the Slide Rule Museum." Photograph show Bob on left with his best buddy Jack, doing what they enjoyed most - horsing around on the golf course.



Pickett Model 3 Deci Multiphase Log Log 1949 V3

ISRM 12.09.01.01
Pickett Model 3 Deci Multiphase Log Log sn F122589
Made in USA -  30 scales - ©1947 - Magnesium Stock.
Note text "TRADE MARK" around logo
Front Scale (artwork 301)
3#1, 3#2, 3#3, DF [ CF, T Cot, ST, S Cos, CI, C ] D, DI,#1,  #2
Back Scale (artwork 253)
1/N1, 1/N2, 1/N3, 1/N4, DF/M [ CF/M, CI, C] Co D, N1, N2, N3, N4
Donated by Laurie Deiter of Louisville, CO daughter of H. McFadden
H. McFadden used this slide rule in his work as an engineer.


Pickett Model 3 Deci Multiphase Log Log 1950 V4

REF S226
Pickett Model 3 Deci Multiphase Log Log
Made in USA -  30 scales - ©1947 - Magnesium Stock
Note: Newer Logo (no "TRADE MARK" text)
Front Scale: 3#1, 3#2, 3#3, DF [ CF, T Cot, ST, S Cos, CI, C ] D, DI,#1,  #2
Back Scale: 1/N1, 1/N2, 1/N3, 1/N4, DF/M [ CF/M, Digits, CI, C] Co/D, N1, N2, N3, N4


Pickett N3-ES Power Log Exponential (1960)

ISRM 20.06.05.01
Pickett N3-ES - Power Log Exponential
Made in USA - Aluminum Stock, Round Black logo Logo, Curved finger braces, Flat lens..
Front Scale: √  #1,   #2, K, A [B, ST, S/Cos, T1, T2, CI, C] D, DI, 3√  #1, 3√  # 2, 3√  #3
Back Scale: LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, Ln, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0
Donated by Emily Castellucci of Columbus, OH.
Used by David Castellucci who worked at Hewlett-Packard in the 70s,and Teddy Castellucci who studied metalurgy as a welder


Pickett N3-ES Power Log Exponential (c1962)

ISRM 21.04.07.06
Pickett N3-ES - Power Log Exponential
Made in USA - Aluminum Stock, Round Black logo Logo, Curved finger braces, Convex lens..
Front Scale: √  #1,   #2, K, A [B, ST, S/Cos, T1, T2, CI, C] D, DI, 3√  #1, 3√  # 2, 3√  #3
Back Scale: LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, Ln, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0
Original Owner: B.E.Mitchell 7750675 (military sn on inside flap).
Gift Of Katherine Champs Jones of Vienna, Virginia.


Pickett N3-ES Power Log Exponential

ISRM 11.08.23.01
Pickett N3-ES - Power Log Exponential (©1960)
Made in USA - Aluminum Stock, Modern Logo, Curved finger braces. convex lens
Front Scale: √  #1,   #2, K, A [B, ST, S/Cos, T1, T2, CI, C] D, DI, 3√  #1, 3√  # 2, 3√  #3
Back Scale: LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, Ln, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0
Donated by John L. Crawley III, Newport News, Virginia
John used this pristine slide rule in at Virginia Military Institute (VMI) up until his senior year, 1973-74, when he obtained an electronic calculator. His name and college is written inside the sleeve flap.


Pickett N3P-ES Power Log Exponential (NOS)

ISRM 13.02.20.06
Pickett N3P-ES - Power Log Exponential (NOS)
Made in USA - Copyright 1960
Front Scale: √  #1,   #2, K, A [B, ST, S/Cos, T1, T2, CI, C] D, DI, 3√  #1, 3√  # 2, 3√  #3
Back Scale: LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, Ln, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0



Pickett 3-T Dual-Base Log Log Reciprocal Scale (1953)

ISRM 22.09.01.01

Pickett 3-T Dual-Base Log Log Reciprocal Scale (1953)
Made in USA - Triangle logo, Aluminum grooved Stock, Steel Blocks, Rounded Braces, grooved flat 4-screw lens.
Front Scale: 3#1, 3#2, 3#3, DF [ CF, T Cot, ST, S Cos, CI , C ] D, DI ,#1,  #2
Back Scale: 1/N1, 1/N2, 1/N3, 1/N4, DF/M [ CF/M, Digits, CI, C] Co >/D, N1, N2, N3, N4
Gift Of Ronald Ropke (6-11-2042 - ) of Grosse Pointe, Michigan,
Ronald Ropke writes: "My slide rule skills were developed during the 1950s while I was a student at Cass Technical High School in Detroit and later at Lawrence Institute of Technology. An early job asa draftsman at an auto industry conveyor company made slide ruiles skills a valuable asset. During the 1960s, my service in the Air Force weather detachments in Michigan and Vietnam made slide rule use necessary, as electronic calculators were not always available."


Pickett 3-T Dual-Base Log Log Reciprocal Scale (1957)

ISRM 18.04.06.91

Pickett 3-T - Dual-Base Log Log Reciprocal Scale (1957)
Made in USA Triangle logo, Die Cast Braces and Cursor Blocks, grooved flat 3-screw lens.
Front Scale: 3#1, 3#2, 3#3, DF [ CF, T Cot, ST, S Cos, CI , C ] D, DI ,#1,  #2
Back Scale: 1/N1, 1/N2, 1/N3, 1/N4, DF/M [ CF/M, Digits, CI, C] Co >/D, N1, N2, N3, N4
Gift Of Leroy Hausler Collection
Leroy was a pharmacist who had a pharmacy in Seneca, South Carolina. He was a member of the Oughtred Society and enjoyed collecting slide rules during his retirement. His extensive collection appears in many of the ISRM galleries.


Pickett N3-T Power Log Exponential (1960-62)

ISRM 21.10.20.01 (Replaced 14.07.02.63)

Pickett N3-T - Power Log Exponential (1960-62)
Made in USA Round Black Logo, Curved Braces, Curved lens.
Front Scale: √  #1,   #2, K, A [B, ST, S/Cos, T1, T2, CI, C] D, DI, 3√  #1, 3√  # 2, 3√  #3
Back Scale: LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, Ln, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0
Gift Of Christopher K. Anderson of Burlington, MA.
Christopher K. Anderson obtained this slide in 1970 during his sophomore year at the college of Engineering at Syracuse University. In his later college life he recalled that the professors required that the students use slide rules during examinations.even though expensive (digital) calculators were becoming available. He graduated with a B.S. Geology (1973) and a B.S. with a Chemical Engineering degree. He had a successful career in the Chemical Industry, licensing property (process technologies) originating with the B.F. Goodrich Company.


Pickett N3-T Power Log Exponential (1962-1966)

ISRM 18.04.06.89
Pickett N3-T - Power Log Exponential (1962-1966)
Made in USA - Modern Logo, Curved Braces, Curved lens, slide tension spring
Front Scale: √  #1,   #2, K, A [B, ST, S/Cos, T1, T2, CI, C] D, DI, 3√  #1, 3√  # 2, 3√  #3
Back Scale: LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, Ln, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0
Gift Of Leroy Hausler Collection


Pickett N3P-T Power Log Exponential (NOS)

ISRM 13.02.20.07
Pickett N3P-T - Power Log Exponential (NOS)
Made in USA - Copyright 1959 - Aluminum Stock
Front Scale: √  #1,   #2, K, A [B, ST, S/Cos, T1, T2, CI, C] D, DI, 3√  #1, 3√  # 2, 3√  #3
Back Scale: LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, Ln, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0


Pickett X-3 Executive Power Log Exponential

REF
Pickett X-3 Executive Power Log Exponential
Made in USA
Front Scale: √  #1,   #2, K, A [B, ST, S/Cos, T1, T2, CI, C] D, DI, 3√  #1, 3√  # 2, 3√  #3
Back Scale: LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, Ln, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0
Archive - Scan provided by Clay Castleberry Collection


Pickett & Eckel Model 4 Vector Hyperbolic Deci-Log Log

REF S196
Pickett & Eckel Model 4 Vector Hyperbolic Deci-Log Log
Made in USA - copyright 1947 - Magnesium Stock "Decilog" in oval logo.
Front Scale: 1/N1, 1/N2,1/N3,1/N4,D [ CF, Th, Sh, Sh, CI, C ] D, N1, N2, N3, N4
Back Scale: 3#1, 3#2, 3#3, DF [ CF, T, ST, S,  CI, C ] D, DI, √ #1,   #2
Model 4 Instructions 16.8MB PDF,Archive - Scan provided by Marion Moon.


Pickett & Eckel Model 4 Vector Hyperbolic Deci-Log Log

ISRM 22.07.06.43

Pickett & Eckel Model 4 Vector Hyperbolic Deci-Log Log snHC023070
Made in USA - copyright 1949 - Magnesium Stock
Front Scale (artwork P-10.1): N1, 1/N1, N2, 1/N2, DF/M [ CF/M, Th, Sh, Sh, L, CI, C ] D,N3, 1/N3, N4,1/N4
Back Scale (artwork D-110.1): 3#1, 3#2, 3#3, DF [ CF, T Cot, ST, S Cos,  CI, C ] D, DI, √ #1,   #2
Victor B. Tate II's Collection gifted by wife Cindy Tate of Bozeman, Montana.


Pickett & Eckel Model 4 Vector Hyperbolic Deci-Log Log 1947

ISRM 23.10.25.01



E. Charles (Charlie) Crume Jr (1931-2021) was born in Dayton, Ohio. He received a full-tuition scholarship to Wabash College in Crawfordsville, Indiana, and received his AB in physics in 1953. He moved to Middletown, Connecticut, where he earned an MA in physics from Wesleyan University in 1955. In 1956, Charlie joined Pratt & Whitney Aircraft Corporation as a test engineer at the Connecticut Advanced Nuclear Engineering Laboratory, Continued on right
Pickett & Eckel Model 4 Vector Hyperbolic Deci-Log Log snJ120988
Made in USA in Alhambra, California. - copyright 1947 - Magnesium Stock
Front Scale (artwork 254): 1/N1, 1/N2, 1/N3, 1/N4, DF/M [ CF/M, Th, Sh, Sh, CI, C ] D, N1, N2, N3, N4
Back Scale (artwork 243): 3#1, 3#2, 3#3, DF [ CF, T Cot, ST, S Cos,  CI, C ] D, DI, , √ #1,   #2
Original owner" E. Charles Crume, Jr. 1931-2021), Oak Ridge, Tennessee.
Gifted by wife Margaret B. Nestor of Oak Ridge, Tennessee.

Cont'd where he planned and performed critical experiments in the CANEL Nuclear Physics Laboratory. Charlie secured a position in 1964 at the Oak Ridge Nationall Laboratory Y-12 Plant, where he developed computational and experimental techniques for analyzing the nuclear criticality safety of fissionable materials. He took advantage of the Educational Assistance Program offered by Union Carbide Corporation's Nuclear Division to begin work on a PhD in physics at the University of Tennessee, which he completed in 1972. He transferred from Y-12 to the Plasma Theory Section of the ORNL Thermonuclear Division. He developed and used a variety of computational programs to advance the exploration of the behavior of magnetically confined plasmas. He made three visits to the Soviet Union as a participant in US-USSR scientific exchanges, including a two-month stint as a visiting scientist at the Kurchatov Institute. In 1987 Charlie transferred to the Toroidal Confinement Physics Section, working with the spectroscopy group to measure and interpret impurity behavior and infer plasma parameters such as ion and electron temperature. In 1990, when national funding for fusion research was reduced, Charlie returned to nuclear criticality safety, serving as head of ORNL's program in that area until he retired in 1994. He continued to work as a consultant on all aspects of nuclear criticality safety until 2012 and was a member of the American Nuclear Society and the American Physical Society. For nearly 20 years, he was the proud owner of owner of N2606X, a Cessna P206 Stationair, holding a commercial pilot certificate and was a Certified Flight Instructor Instrument (CFII).



Pickett & Eckel Model 4 Vector Hyperbolic Deci-Log Log 1949

ISRM 21.06.10.26

Pickett & Eckel Model 4 Vector Hyperbolic Deci-Log Log sn 12I1682
Made in USA - copyright 1949 - Magnesium Stock
Front Scale (artwork 241): N1, 1/N1, N2, 1/N2, DF/M [ CF/M, Th, Sh, Sh, L, CI, C ] D,N3, 1/N3, N4,1/N4
Back Scale (artwork 251): 3#1, 3#2, 3#3, DF [ CF, T Cot, ST, S Cos,  CI, C ] D, DI, √ #1,   #2
Bob Dehn's Collection gifted by wife Fran (McGroary) Dehn of Menlo Park, California.
REF S544 from Archive


Pickett Model 4-ES Vector Dual Base Log Log (1957)

ISRM 22.02.27.01.X
Pickett Model 4-ES Vector Dual Base Log Log
Note: Transisitional Aluminum Stock with rounded steel braces, metal cursor and flat lens.Round Black Logo. Inverse scales noted with left arrow '<'.
Front Scale (artwork #302): LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH1, SH2, L, <CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Back Scale (artwork #300): 3#1, 3#2, 3#3, DF [ CF, T1, T2, ST, S Cos,  <CI, C ] D, <DI, √ #1,   #2


Pickett Model 4-ES Vector Dual Base Log Log (1957)

REF S423
Pickett Model 4-ES Vector Dual Base Log Log
Note: Aluminum Stock, Cast metal cursor and clamshell end plates. Inverse scales noted with left arrow '<'.
Front Scale (artwork #302): LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH1, SH2, L, <CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Back Scale (artwork #300): 3#1, 3#2, 3#3, DF [ CF, T1, T2, ST, S Cos,  <CI, C ] D, <DI, √ #1,   #2




Pickett Model N4-ES Log Log Vector Hyperbolic Dual Base (1958)

ISRM 23.07.14.03

Toshiyuki Fukushima September 20 1921 - January 1, 2016 Tosh was born and raised in the Japanese community in Seattle and started college at the University of Washington studying Mechanical Engineering. His education was interrupted by Executive Order 9066 and he was sent to the Minedoka Japanese Internment Camp for more than a year and a half. Continued on right
Pickett Model N4-ES Log Log Vector Hyperbolic Dual Base - 1958-62
Made in USA in Chicago
Note: Aluminum Stock ,Square Braces, extended nylon cursor bars, flat lens. Inverse scales noted with left arrow '<'.
Front Scale (artwork #306): LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH1, SH2, L, <CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Back Scale (artwork #300): 3#1, 3#2, 3#3, DF [ CF, T1, T2, ST, S Cos,  <CI, C ] D, <DI, √ #1,   #2
Original Owner: Toshiyuki Fukushima (sleeve flap) Swarthmore, PA.
Gift of Elizabeth Fukushima of Plainfield, Vermont,

Cont'd Gaining re-admittance to university was challenging for engineering students because Japanese American citizens were banned from any campus that had grants to conduct classified government research. He eventually was admitted to Swarthmore College, a small Quaker liberal arts college with an excellent Engineering Department, graduating in 1951. He continued his studies at MIT, and then went to work in the aerospace industry. Tosh loved helicopters and worked primarily in helicopter rotor design. He worked briefly with Kaig Kurkjian on the HK1 aircraft and worked for Vertol Corporation until it was purchased by Boeing in 1960. He closed out his professional career at Boeing Rotorcraft Systems in Ridley Park, PA. He also had a passion for teaching and taught at Swarthmore College, Drexel University and at Widener University. His daughter, Elizabeth, writes :"I am sure the Pickett was his favorite slide rule. He must have had one at work and one at home because I don't think I ever saw his desk at home with out a yellow slide rule on it." Expanded biography




Pickett Model N4-ES Log Log Vector Hyperbolic Dual Base (1958)

ISRM 17.08.24.12

Pickett Model N4-ES Log Log Vector Hyperbolic Dual Base - 1958-62
Made in USA in Chicago
Note: Aluminum Stock ,Square Braces, extended nylon cursor bars, flat lens. Inverse scales noted with left arrow '<'.
Front Scale (artwork #306): LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH1, SH2, L, <CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Back Scale (artwork #300): 3#1, 3#2, 3#3, DF [ CF, T1, T2, ST, S Cos,  <CI, C ] D, <DI, √ #1,   #2
Original Owner: Arthur (Art) F. Pfeil (in early sleeve flap design ) Santa Barbara, California.
Gift of Nancy Morris, Tempe, Arizona. Dustin E. Morris Collection,
ISRM research discovers that Arthur F. Pfeil was a High School math teach. Art completed his Bachelor of Science Degree in Civil Engineering from the University of Cincinnati while working on the Tappan Dam and later the Old Grand-dad Whiskey factory. Realizing a love for learning and teaching, Art returned to Ohio State College in 1937 to complete a Master's Degree in Education. He taught math, physics, and chemistry as well as coached swimming at Ada High School from 1938 to 1950, then Kent State University High School from 1950 to 1963, and finally at Santa Barbara High School from 1963 to 1980. He married Jean Ellen Flynn Franklin (1920-2019) in 1957. Art died in 2011.



Pickett Model 4-ES Executive Log Log Vector Hyperbolic Dual Base (1958)

REF

Pickett Model 4-ES Executive Log Log Vector Hyperbolic Dual Base - 1958-62
Made in USA in Chicago
Note: Gold anodized Square stamped square braces and screws, Set came in wood box.
Note: Round black Logo with artwork code. extended nylon cursor bars, flat lens. Inverse scales noted with left arrow '<'.
Front Scale (artwork #306): LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH1, SH2, L, <CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Back Scale (artwork #300): 3#1, 3#2, 3#3, DF [ CF, T1, T2, ST, S Cos,  <CI, C ] D, <DI, √ #1,   #2
Scan provided by Marc-Yvon_Comeau Collection, Canada,


Pickett N4-ES Vector-Type Log Log (1959)

ISRM 14.01.10.45.X

Pickett N4-ES Vector Log Log Dual-Based Speed Rule - 1959
Made in USA by Pickett in Chicago
Note: Square stamped braces, Round style 3 open Logo with artwork code. Inverse scales in RED
Front Scale (artwork #307): LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH, Ln, L, CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Back Scale (artwork #306): 3#1, 3#2, 3#3, DF [ CF, CIF, T1, T2, ST, S CosCI, C ] D, DI, √ #1,   #2
Gift of the Bill Wehrend Collection, Palo Alto, California.


Pickett N4-ES Vector-Type Log Log (1959)

ISRM 21.08.07.15

Pickett N4-ES Vector Log Log Dual-Based Speed Rule - 1959
Made in USA by Pickett in Chicago
Note: Curved braces, Round style 3 open Logo with artwork code. Narrow Flat lens. Inverse scales in RED
Front Scale (artwork #307): LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH, Ln, L, CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Back Scale (artwork #306): 3#1, 3#2, 3#3, DF [ CF, CIF, T1, T2, ST, S CosCI, C ] D, DI, √ #1,   #2
Gift of the William Lisowski of Pennsylvania.


Pickett N4-ES Vector-Type Log Log - 1959

ISRM 12.08.05.02


Lyle Wells with wife Antoinette, Belgium, 1946
Pickett N4-ES Vector Log Log Dual-Based Speed Rule 1958-1959
Made in USA - Note: Round Black Logo with artwork code. Inverse scales in RED
Front Scale (artwork #307): LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH, Ln, L, CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Back Scale (artwork #306): 3#1, 3#2, 3#3, DF [ CF, CIF, T1, T2, ST, S CosCI, C ] D, DI, √ #1,   #2
Donated by Lyle Wells of Henderson, Nevada
Lyle Wells was born May 26, 1923. He married his wife, Antoinette, in 1946 in Belgium while he was in the Army. They were married for 65 years and have one son. Lyle was drafted on March 12, 1943 and served until 1953 spending most of his time in France, Belgium and Germany as a master sargeant in the 515 engineer outfit. After returning to the United States, Lyle was an operating engineer for over 20 years and also owned two businesses. He was a recreational pilot and remembers needing to have a slide rule in order to obain his pilot's license. Although he was only able to go to school until the 8th grade before having to earn a living. Lyle remembers that his wife, who spoke 5 languages, was always better than him with the slide rule. At 89 years of age as of 2012, Lyle rides his mountain bike an average of 10-15 miles per day and the only pills he takes are vitamins. (Biography contributed by Donna Silva of Wishing Well Glass.


Pickett N4-ES Vector-Type Log Log 1960-62

ISRM 10.12.12.02.X

Andrew (Andy) David Keller (1942-2010)
Pickett N4-ES - Vector-Type Log Log Duplex - 1960-62
Made in USA - Aluminum Stock - Black Round Logo. No artwork codes. Narrow nylon cursor blocks.
Front Scale: LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH, Ln, L, CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Back Scale: 3#1, 3#2, 3#3, DF [ CF, CIF, T1, T2, ST, S CosCI, C ] D, DI, √ #1,   #2
Donated by Andrew Keller, Longmont, Colorado Andrew (Andy) David Keller (1942-2010) had a long career as an ergonomist, industrial psychologist and human factors engineer, working 17 years for IBM. He served in the US Army 1966-1968 and made design and safety improvements for a personnel carrier which were adopted by the Army. Andy earned his undergraduate degree from Mankato State University and his Masters degree from the University of South Dakota. A strong community citizen, Andy served in his church and was an active leader of the local chapter of the Society of Manufacturing Engineers. Andy was a contributor of numerous slide rules to the International Slide Rule Museum which can be found in the Pickett and Post galleries. He died in 2010 and was survived by his wife Anne in Longmont, Colorado.


Pickett N4-ES Vector-Type Log Log 1964-75

ISRM 04.08.04.01

Stan Nolte
Pickett N4-ES Vector-Type Log Log Dual-Based Speed Rule 1964-75
Made in USA - Aluminum Stock - Modern Logo. No artwork codes.
Front Scale: LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH, Ln, L, CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Back Scale: 3#1, 3#2, 3#3, DF [ CF, CIF, T1, T2, ST, S CosCI, C ] D, DI, √ #1,   #2
Stan Nolte used this slide rule throughout his freshman and sophomore years in the School of Engineering at Arizona State University. He received a B.A. in mathematics in 1975 and an M.S. in computer science in 1980 from the University of Colorado in Boulder. He began his programming career at the National Center for Atmospheric Research, and then worked for several years in small high-tech startup companies before becoming self employed in 1991. He currently consults for the oil and gas exploration industry, and writes PC, Macintosh, and iPhone software for his own company, My Edge Software, LLC.


REF Pickett N4P-ES Vector-Type Log Log
Pickett N4P-ES - Vector-Type Log Log Duplex
Made in USA
Front Scale: LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH, Ln, L, CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Back Scale: 3#1, 3#2, 3#3, DF [ CF, CIF, T1, T2, ST, S CosCI, C ] D, DI, √ #1,   #2
Archive


Pickett 4-T Vector-Type Log Log c1957

ISRM 09.10.21.01

Marten C. Jensen
Pickett 4-T - Vector-Type Log Log Duplex
Made in USA - 1957 - Aluminum Stock, Round Black Logo, Rounded stamped braces. machined steel cursor bars, flat lens.
Front Scale (Artwork code 257): LL1+.00D/<-.00D, LL2+.0D/<-.0D, DF/m [ CF/m, TH, SH, Ln, L, <CI, C ] D, LL3+.D/<-.D, LL4+D./<-D.
Back Scale (Artwork code 258): 3#1, 3#2, 3#3, DF [ CF, <CIF, T1, T2, ST, S <Cos, <CI, C ] D, <DI, √ #1,   #2
Donated by Marten C. Jensen, Redlands, Ca..
Marten C. Jensen was born in New York City in 1932. Korean conflict veteran in the U.S. Air Force and later discharged from Holloman AFB. He attended New Mexico State University under the GI Bill. In 1958, he graduated with a BS degree in Electrical Engineering. During his time at college, Marty used this Pickett 4-T quite extensively. Marten is in the ISRM SR Who's Who gallery for donating his personal collection to ISRM.


Pickett 4-T Vector Hyperbolic Dual Base Log Log

ISRM 22.07.06.84
Pickett 4-T Vector Hyperbolic Dual Base Log Log - c1950
Made in USA - Aluminum Stock, Metal blocks, flat lens, rounded steel braces
Front Scale (Artwork 256): LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH1, SH2, L, CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Back Scale (Artwork 257): 3#1, 3#2, 3#3, DF [ CF, T, T1, T2, ST, S Cos,  CI, C ] D, DI, √ #1,   #2
Original owner:David J. Botello, Captain (then written over to Major when he got promoted) Military sn: AO 676410 (written on sleeve).
Gifted by Cindy Tate of Bozeman, Montana
David J. Botello, as a 2nd LT, was a bombadier as part of the 711 Bomb Sq. 447 Bomb Group which flew B-17 Flying Fortresses on strategic bombardment missions out of Rattlesden, Suffolk. Their mission was to soften up the coastal targets before the planned invasion of Normandy. They flew a successful mission attacking the Cognac airport in France. They were shot down 31 December 1943 in B-17G-1 #4231125 and bailed out. Only 5 chutes deployed out of 10 crew. He became separated from the others. He was initially listed as MIA but was found to be taken as a Prisoner of War (POW). This Evasion account from the Waistgunner, Edward L. Knapp, S/SGT tells of SGT Knapp's evasion and escape from France into Spain. Of the 10 crewmen, 5 were MIA. LT. Botello returned to England, and was to go on to being promoted to a Major.


Pickett N4-T Vector-Type Log Log V1 1959

ISRM 20.01.06.01

Pickett N4-T - Vector-Type Log Log Duplex
Made in USA - 1962 - Aluminum Stock -
Triangle logo, square braces, flat lens. narrow nylon bars. All black text.
Front Scale (Artwork code 306): 3#1, 3#2, 3#3, DF [ CF, CIF, T1, T2, ST, S Cos,  CI, C ] D, DI, √ #1, #2
Back Scale (Artwork code 300): LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH, Ln, L, CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Original owner: Marked: Wm. F. Preston on sleeve
Gift Of Nancy Ulrich, of Denver, Colorado. Ted Ulrich Collection



Pickett N4-T Vector-Type Log Log 1960

ISRM 20.01.06.01

Pickett N4-T - Vector-Type Log Log Duplex
Made in USA - 1962 - Aluminum Stock -
Triangle logo, square braces, flat lens. wide nylon bars.
Front Scale (Artwork code 307): 3#1, 3#2, 3#3, DF [ CF, CIF, T1, T2, ST, S CosCI, C ] D, DI, √ #1, #2
Back Scale (Artwork code 306): LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH, Ln, L, CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Gift of Dennis Dubberley of Raleigh, North Carolina.



Pickett N4-T Vector-Type Log Log 1960

ISRM 22.10.14.04
Pickett N4-T - Vector-Type Log Log Duplex 1960
Made in USA - Aluminum Stock,Flat lens, round black logo. curved braces.
Front Scale (Artwork code 307): 3#1, 3#2, 3#3, DF [ CF, CIF, T1, T2, ST, S CosCI, C ] D, DI, √ #1, #2
Back Scale (Artwork code 308): LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH, Ln, L, CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Donated by John Holmes of Washington, D.C..


Pickett N4-T Vector-Type Log Log 1962

ISRM 13.04.10.01

Jeff and Carol Smith, 2009
Pickett N4-T - Vector-Type Log Log Duplex
Made in USA - 1962 - Aluminum Stock -
Front Scale (Artwork code 307): 3#1, 3#2, 3#3, DF [ CF, CIF, T1, T2, ST, S CosCI, C ] D, DI, √ #1, #2
Back Scale (Artwork code 308): LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH, Ln, L, CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Donated by Robert "Jeff Smith, Fort Atkinson, Wisconson.
This slide rule was owned by Robert J. Smith Jr. ("Jeff"), Lt Col USAF (retired). It was purchased at the bookstore at Michigan College of Mining & Technology (now known as Michigan Tech University) and was used throughout the four year bachelor-of-science program, metallurgical engineering studies, 1962 through 1966. After graduation, it was put to work for a short time calculating tensile, yield, compression and torsion test results at the Chevrolet Motor Division central laboratory located at the Detroit Forge. A USAF career followed shortly thereafter and the old Pickett lounged around in its case for decades, being overcome by calculators & computers. Jeff writes: " I recently re-discovered my slide rule during a spring cleaning, it deserves a better life at the Slide Rule Museum." The photograph is of Jeff and his wife, Carol, from a 2009 F-111 aircrew reunion in Fort Worth, TX.


Pickett N4-T Vector-Type Log Log (NOS)

ISRM 13.02.20.04A
Pickett N4-T - Vector-Type Log Log Duplex (NOS)
Made in USA - 1959 - Aluminum Stock - Artwork code 300
Front Scale: LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH, Ln, L, CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Back Scale: 3#1, 3#2, 3#3, DF [ CF, CIF, T1, T2, ST, S CosCI, C ] D, DI, √ #1,   #2
Note: This is a 'Twin Pack' set with a 10" and 6" Dual Base LogLog Slide Rules, which included an N600-T, shown below.



Pickett N4-T Vector-Type Log Log w/Magnifier

REF
Pickett N4-T Vector-Type Log Log w/Magnifier
Made in USA - 1959 - Aluminum Stock - Artwork code 300
Front Scale: LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH, Ln, L, CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Back Scale: 3#1, 3#2, 3#3, DF [ CF, CIF, T1, T2, ST, S CosCI, C ] D, DI, √ #1,   #2



Pickett N4P-T Vector-Type Log Log
ISRM 18.04.06.72
Pickett N4P-T - Vector-Type Log Log Duplex
Made in USA
Front Scale: LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH, Ln, L, CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Back Scale: 3#1, 3#2, 3#3, DF [ CF, CIF, T1, T2, ST, S CosCI, C ] D, DI, √ #1,   #2
Gift Of Leroy G. Hausler Collection


Pickett X-4 Executive Vector Type Log Log

ISRM 22.09.20.01

Pickett X-4 Executive Vector Type Log Log
Made in USA. The Executive models were specially made with a metal framed cursor and brown highlights on the scales.
Front Scale: LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH, Ln, L, CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Back Scale: 3#1, 3#2, 3#3, DF [ CF, CIF, T1, T2, ST, S CosCI, C ] D, DI, √ #1,   #2
Gift Of JoAnn Lynn of Washington, DC in memory of Joel J. Lynn (1943-2022)
Joel Joel Lynn (1943-2022) was born in Philadelphia, PA to Edward and Frances Lynn. He graduated from Brown University after which he joined the Marines. Joel served in Vietnam and was awarded the Purple Heart. He spent several years as a stockbroker before he decided to learn clock-making. After school and apprenticeship, he opened his own clock repair business. He retired in 2016. Joel was an avid bicyclist, motorcyclist, flyfisher, bird-watcher, tailor and sailor.He passed at the age of 79 in Washington, D.C.



Pickett Model 6-T Statistical Quality Control (1952-57)

REF
Pickett Model 6-T Statistical Quality Control (1952-57)
Made in USA by Pickett
Front Scale: A2, D3, D4, DF [ CF, d2, A0, D0, CI, C] D, LL3, LL2, LL1
Back Scale: LL0, LL00, P0, A [B, F, F, S, T, C ] D, B0, f, L
Archive - Scan donated by Orion Miller, Memphis, TN
Instructions (7.08MB) - Scan by Steve Treadwell



Pickett Model 6-T Statistical Quality Control (1962)

ISRM 18.04.06.87
Pickett Model 6-T Statistical Quality Control (1962)
Made in USA by Pickett
Front Scale: A2, D3, D4, DF [ CF, d2, A0, D0, CI, C] D, LL3, LL2, LL1
Back Scale: LL0, LL00, P0, A [B, F, F, S, T, C ] D, B0, f, L
Gift Of Leroy G. Hausler Collection

Instructions (7.08MB) - Scan by Steve Treadwell



Pickett Model 7-T Service Pipe Line Company
REF
Pickett Model 7-T Service Pipe Line Company
Made in USA by Pickett for S.P.L. Co. - 1953
Distributed by L.L. Ridgeway Co. (Oil Industry)
Front Scale (Streamline Flow): H, P [ Miles, Flow, Viscosity, (4) Pipe ID] BBLS/Hr, BBLS/Day
Back Scale (Turbulent Flow): P [ Miles, Flow, (2) Viscosity, (4) Pipe ID] BBLS/Hr, BBLS/Day
Archive - David Hecht Collection


Pickett 8-T McGann Variable Density Flow Computer

ISRM 10.10.23.01
Pickett 8-T McGann Variable Density Flow Computer
Made in USA by Pickett for McGann Industries - 1959
Front Scale: Pt/P,, Tt/T, λ, M, J4, J3 [ λ4, λ3, λ2, λ1, λ0 ] J2, J0-1&M, λ, Tt/T, Pt/P
Back Scale: LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH, Ln, L, CI, C ] D, LL3+.D/-.D, LL4+D./-D.



REF Pickett Model 12 Turbulent Flow Sliderule
Pickett Model 12 Turbulent Flow Sliderule
Made in USA by Picket for C.F. Braun & Company, Alhambra, CA - 1957
Front Scale (for Liguids): K1 Pipe size, V1 Specific Gravity, K3 Fittings, V4 velocity [ Viscosity CP, K2 Equiv Length, V3 Pipe size (velocity), GPM, LB/HR. Pipe Size, L/100. FT ] Pressure Drop
Back Scale (for Gases): V2 ACFM, V1 LB/HR, V3 Pipe Size [ Discosity CP, Density LB.FT3, Steam Temperature, V4 Velocity, LB/HR, Pipe Size, L/100.FT ] Pressure Drop
Note: Has unique notations to show sequential steps to perform calculations, using Δ1, Δ2, Δ3, etc.
Archive - Scan donated by Clay Castleberry


Pickett Model 14 US Military Artillery Ranging (1959)

ISRM 18.04.06.83
Pickett Model 14 US Military Artillery Ranging (1959)
Made in USA - Round Black Logo, Stamped curved braces, Grooved flat lens.
Front Scale: LL1+/-, LL2+/-, A [ B, T Cot, ST, S Cos, K,  C ] D, LL3+/-, LL4+/-
Back Scale: Opposite angle Deg, Deg,  Mils, Mils [ Apex angle, Tan CoTan, Sin-Tan, Sin CoSin, Base C ], Distance D, A
Gift Of Leroy Hausler Collection


Pickett Model 14 US Military Artillery Ranging (1962)

ISRM 12.04.22.01
Pickett Model 14 US Military Artillery Ranging (1962)
Made in USA
Front Scale: LL1+/-, LL2+/-, A [ B, T Cot, ST, S Cos, K,  C ] D, LL3+/-, LL4+/-
Back Scale: Opposite angle Deg, Deg,  Mils, Mils [ Apex angle, Tan CoTan, Sin-Tan, Sin CoSin, Base C ], Distance D, A


REF Pickett N15-T GIW Hydraulic 1961

Pickett N15-T GIW Hydraulic - 1961
Made in USA by Pickett for GIW Industries, Designed by Danforth W. Hagler
Front Scale: V2/2g(FT), VEL (FT/SEC) [ C(Hf) TONS/HR, % SOLIDS, SP.CR.SLU., PIPE ID (VEL), PIPE ID (Hf) ] CPM, TONS/HR., hf(FT/100')
Back Scale: SFM, HEAD3/4, HEAD [ Φ, GPM, BHP/sp. gr., IMPELLER DIA.] RPM. PUMP % EFF.
Archive - Scan provided by Ronald E. Kuc Collection


Pickett N15-T GIW Hydraulic 1970 Prototype

REF

Pickett N15-T GIW Hydraulic - 1970 Prototype
Made in USA by Pickett for GIW Industries, Designed by Danforth W. Hagler
Front Scale: V2/2g(FT), VEL (FT/SEC) [ C(Hf) TONS/HR, % SOLIDS, SP.CR.SLU., PIPE ID (VEL), PIPE ID (Hf) ] CPM, TONS/HR., hf(FT/100')
Back Scale: SFM, HEAD3/4, HEAD [ Φ, GPM, BHP/sp. gr., IMPELLER DIA.] RPM. PUMP % EFF.
SR Donated by Reab Berry of GIW Industries
Note: Notice the smooth end braces (no ridges) and a one-of-a-kind cursor that has not been seen on a Pickett before. This was a preliminary change from the 1961 version to the 1970 production version.


Pickett N15-T GIW Hydraulic 1970

ISRM 09.01.11.01

Pickett N15-T GIW Hydraulic - 1970
Made in USA by Pickett for GIW Industries, Designed by Danforth W. Hagler
Front Scale: V2/2g(FT), VEL (FT/SEC) [ C(Hf) TONS/HR, % SOLIDS, SP.CR.SLU., PIPE ID (VEL), PIPE ID (Hf) ] CPM, TONS/HR., hf(FT/100')
Back Scale: SFM, HEAD3/4, HEAD [ Φ, GPM, BHP/sp. gr., IMPELLER DIA.] RPM. PUMP % EFF.
SR and 1970 Manual Donated by Reab Berry of GIW Industries
1961 Manual Donated by Dan Hagler(designer of SR) 17.4MB PDF
Note: In 1960, Danforth W. Hagler, who's family ran Georgia Iron Works, Grovetown, Ga., conceived and designed the GIW Hydraulic Slide Rule. His brother Tom, wrote the manual. Before its invention, each engineer in the engineering department had a large, thick notebook with about 100 pages of graphs. The slide rule incorporated many hydraulic pump and pipeline formulas. One side of the slide rule contained engineering formulas involved with performance of a pump while the other side contained everything necessary for pipeline and production calculations.


Pickett N-16-ES Chan Street Electronic Slide Rule

ISRM 17.09.15.01


Chan Street (1907-?), Designer of the N-16, and was the owner of Street Laboratory and Industries, El Segundo, California. More info in the ISRM Who's Who Gallery.
Pickett N-16-ES Chan Street Electronic Slide Rule
Made in USA - 1960 - Designed by Chan Street
Front Scale: SH1, SH2,TH, DF [ CF, L,  S Cos,  ST, T T, CI, C ] D, LL3, LL2, LL1, Ln
Back Scale: Θ Θ, db,  D or Q, XL , Zs or Xc [ C or L, F, λ, ω, T, TR' or X'c, Cr ] Lr, db, CosΘ
Gift of Poly Hattemer of Redondo Beach, California
2.5MB


Pickett N-16-ES Chan Street Electronic Slide Rule

ISRM 22.09.13.14


Pickett N-16-ES Chan Street Electronic Slide Rule
Made in USA - 1960 - Designed by Chan Street
Front Scale: SH1, SH2,TH, DF [ CF, L,  S Cos,  ST, T T, CI, C ] D, LL3, LL2, LL1, Ln
Back Scale: Θ Θ, db,  D or Q, XL , Zs or Xc [ C or L, F, λ, ω, T, TR' or X'c, Cr ] Lr, db, CosΘ
Gift of JoAnn Lynn of Washington, D.C. Joel L. Lynn Collection

Manuals in box, Nyquist Plot in manual, 61 page Manual available in ISRM Volume 3 (Pickett) or Volume 15 (Electrical & Radio).


REF Pickett Model 17 Radiated Light Energy
(lasers)
Pickett Model 17 Radiated Light Energy (lasers)
Made in USA - 1970 - For Electro Optical Industries
Front Scale: Q0-, Qλm, tf, tc, T  [ Qλ1/Qλm, Qλ2/Qλm, M(Qλm) M(Q0- ), Qλ/Q0-, Qλ/Q0- ] λ1λ2,  V1, V2, Eλm, ev
Back Scale:  H0-, Hλm,   tf, tc, T  [ Hλ1/Hλm, Hλ2/Hλm, M(Hλm) M(H0- ), H0-λ1/H0-, Hλ2-∞/H0-, C]  D, λ1λ2,  V1, V2, Vn/√R∆f, V/Hz-Ω
Archive - Rod Lovett Collection


Pickett C18-T Microwave Transmission Dual Base LL

ISRM 14.07.02.46

Pickett C18-T Microwave Transmission Dual Base LL
Made in USA - 1965 - For Collins Radio
Front Scale: Θa, Ga, Gp,Ls, A [ B, BchTCΦf<10, AE, Φf>10Lp, d1'/d, C ] D, Pr Ndbrnc0, Ndba0, Npwp, FM-S/N, V-S/N
Back Scale:  LL0 +.001/-.001,  LL1 +.01/-.01, DF [ CF, Ln, L, S, ST, T, CI, C ] D, LL2 +.1/-.1, LL3 +1.0/-1.0
Gift Of Ed Millis, Dallas, Texas.


Pickett C19-T Microwave Transmission
Dual Base LL Speed Rule

ISRM 12.06.02.01


Pickett C19-T Microwave Transmission Inst. Inserts

Pickett C19-T Microwave Transmission, Dual Base LL Speed Rule
Made in USA - 1965 - For Collins Radio
Front Scale: Θa, Ga, Gp,Ls, A [ B, Bch,TC, Bif, AE, Φf<10, Φf>10Lp, d1'/d, C ] D, Pr Ndbrnc0, Ndba0, Npwp, S/N(unwntd), V-S/N
Back Scale:  LL0 +.001/-.001,  LL1 +.01/-.01, DF [ CF, Ln, L, S Cos, ST, T Cot, CI, C ] D, LL2 +.1/-.1, LL3 +1.0/-1.0
Original Owner: Bob MacKenzie, Canby, Oregon. Bob was an electronics engineer who retired from Hughes Aircraft.
Donated by James H. Price, Tacoma, Washington
James' background is in aerospace engineering and obtained this from its original owner. James was the Senior Vice President of Software Development at C/S Solutions, Inc. He received a BSAA in Aeronatics from the University of Washington (1985) and a MSAE from the University of Southern California (1988).


Pickett Model 20 Basic V1

ISRM 09.01.12.91
Pickett Model 20 Basic V1
Made in USA - Scales printed on sheet aluminum
Front Scale: K, A [ B, T Cot, S Cos, CI, C ] D, L
Back: Blank
Donated by David Hecht, Alexandria, Virginia



Pickett Model 20 Basic V2

ISRM 20.04.01.037
Pickett Model 20 Basic V2
Made in USA - Scales printed on painted sheet aluminum
Front Scale: K, A [ B, T Cot, S Cos, CI, C ] D, L
Back: Blank
Gift Of Phillip E. Stanley


Pickett Model 20 Basic V3

ISRM 20.04.01.037
Pickett Model 20 Basic V3
Made in USA - Scales printed on painted sheet aluminum
Front Scale: K, A [ B, T Cot, S Cos, CI, C ] D, L
Back: Blank


Pickett Model 21 Real Estate Costimator

ISRM 20.04.01.411
Pickett Model 21 Real Estate Costimator
Made in USA - All sheetmetal design.
Front Scale: Building Area in square feet [ Cost per sq.ft. in Dollars, Percentage of Depreciation Percentage of Total, Term of Loan in Years ] Depreciated Building Cost in Dollars.
Back: Blank
Gift Of Phillip E. Stanley


Pickett Model 22 Real Estate

REF
Pickett Model 22 Real Estate
Made in USA
Front Scale: Building Area [ Cost per sq.ft., Percentage of total] Depreciation
Back: Blank
Archive - Not in collection


REF Pickett Model 23 Real Estate

Instructions (2.04 MB PDF)
Pickett Model 23 Real Estate
Made in USA
Front Scale: Building Area [ Cost per sq.ft., Percentage of total] Depreciation
Front Scale: K, A [ B, CI, C ] D, L
Archive - Photo and scans donated by Ron Kuc collection


Pickett 52T Type-A1 USAF Aerial Photo MIL-C-4318A (USA)

ISRM 15.12.05.01

Pickett 52T Type-A1 USAF Aerial Photo Slide Rule MIL-C-4318A
Made in USA by Pickett for the U.S. Air Force Under Felsenthal Contract
Front Scale: L, A, DF [ CF, CIF, T, Cot, S, Cos, C ] D, DI, K
Back scale: Ground Size Meters, Feet, Ground Speed, [Image size, Cycling Time, Focal Length ] Altitude
Gift Of Steve Wilkie, Canada.

Note: Felsenthal Instrs. Co. Contract Information


Pickett 52T Type-A1 USAF Aerial Photo MIL-C-4318 (Mexico)

ISRM 18.01.01.01

Pickett 52T Type-A1 USAF Aerial Photo Slide Rule MIL-C-4318
Made in Mexico by Pickett for the U.S. Air Force
Front Scale: L, A, DF [ CF, CIF, T, Cot, S, Cos, C ] D, DI, K
Back scale: Ground Size Meters, Feet, Ground Speed, [Image size, Cycling Time, Focal Length ] Altitude
Original Owner: Howard Nelson of Goshen, New York
Gift Of Mark Mazzella, New York.
Mark Mazzella was given this slide rule by the widow of Howard Nelson and decided to donate it to ISRM in the owner's honor

Note: Astrodyne Inc. Contract Information


Pickett Model 61 - Promotional

ISRM 20.04.10.240
Pickett Model 61 (Stamped Model 6) - Promotional
Made in USA - GE Tubes
Construction: All plastic w/ black braces
Front Scale: K, A [ B, CI, C ] D, L
Back Adv: GE Tubes
Original Owner: Mike Ringhofer (inside sleeve).
Gift Of Phillip E. Stanley Collection.


Pickett Model 61 - V1 Black Braces

ISRM 11.11.13.01
Pickett Model 61 - Version 1
Made in USA - all plastic w/ Black braces
Front Scale: K, A [ B, CI, C ] D, L
Back: Blank


Pickett Model 61 - V2 Grey Braces

ISRM 11.11.13.02
Pickett Model 61 - Version 2
Made in USA - all plastic w/ grey braces
Front Scale: K, A [ B, CI, C ] D, L
Back: Blank


Pickett Model 61-C Concrete Estimator

ISRM 12.06.24.10
Pickett Model 61-C Concrete Estimator
Made in USA - all plastic w/ grey braces
Front Scale: K, A [ B, CI, C ] D, L
Back:
A (Thickness) [ B (Width or Height), C (Length) ] D (Volume in Cu. Yds.)
Donated by the Huang Collection..

P089 Pickett Model 62 Trig
ISRM 20.04.01.113
Pickett Model 62 Trig
Made in USA - Plastic w/ metal ends
Front Scale: K, A [ B, CI, C ] D, L
Back Scale: [ S, ST, T ]
Sleeve Promo: General Electric.
Donated by the PhillipE.Stanley Collection..


Pickett Model 62 Trig - Promotional

ISRM 12.06.24.11
Pickett Model 62 Trig - Promotional
Made in USA - Promotional for Westville Electric Co., New Haven, Connecticut
Construction: Plastic Duplex w/ metal ends
Front Scale (artwork 38): K, A [ B, CI, C ] D, L
Back Scale: [ S, ST, T ]
Donated by the Huang Collection..


Pickett 80 Basic Student Trig

ISRM 04.04.22.03
Pickett 80 Basic Student Trig
Made in USA
Front Scale: T, K, A [ B, CI, C ] D, L, S
Back: Blank
Note: Original price was $1.39


Pickett Model 100 Douglas Sky Rule 1951

ISRM 14.07.02.73

Instructions (6.22MB PDF)

Scan by Steve Treadwell
Pickett Model 100 Douglas Sky Rule - Rounded Braces
Made in USA for Douglas Aircraft - Copyright 1952
Front Scale (A side)(Artwork #56): Dynamic Pres., Temp Rise [ Static Pres., Pres. Alt, Density Alt., C ] D, True Mach. TAIS
Back Scale (B side): Impact Pres., Std. Temp., Pres. Alt. [ Temp. Venier, Pres. Alt. ] True Mach No., Dial Airspeed. ] Blank
Gift of Ed Millis of Dallas, Texas


REF Pickett Model 100 Douglas Sky Rule (1952)
Pickett Model 100 Douglas Sky Rule (square braces)
Made in USA for Douglas Aircraft - 1952
Front Scale (A side)(Artwork#52): Dynamic Pres., Temp Rise [ Static Pres., Pres. Alt, Density Alt., C ] D, True Mach. TAIS
Back Scale (B side): Impact Pres., Std. Temp., Pres. Alt. [ Temp. Venier, Pres. Alt. ] True Mach No., Dial Airspeed. ] Blank
Archive - Herman's SR Catalogue

Pickett 101-C Dial Rule (1958) Variation 1

ISRM 10.09.13.02
Pickett 101-C Dial Rule (1958) Variation 1
Made in USA, 10.2cm dia Aluminum disk with 3 plastic pivotable cursors. (no scale labels)
Note: 1958-1961 Triangle logo with Pickett in italics, CHICAGO underneath. Model number under the DIAL RULE label.
Front Scale: C, CI, A, AF, L, FA, LL2, LL1, DS, DT, M
Back Scale: C, S, ST, T, Fractions-Decimal
Donated by Mike Medlock, Greenwood, Indiana
As Mike prepared to enter Purdue in 1962, his brother Allen was completing his B.S. in Mathematics - also at Purdue. His brother decided a great gift for his younger brother as he began his college career would be a slide rule. Just to be different he decided to purchase a circular slide rule, certainly a oddity at the time. Mike used the slide rule throughout his college career and was amused by the odd looks from fellow engineering students. He graduated with a B.S. Chem. Eng. from Purdue University 1967.


Pickett 101-C Dial Rule (1960) Variation 2

ISRM 12.05.02.04

See other slide rules from this talented family in the Circular, K&E, Ricoh, and Post Galleries..

Anne Kilby with mother Ruth Moira Kane (1959)
Pickett 101-C Dial Rule - (1960) Variation 2
Made in USA, 10.2cm dia Aluminum disk with 3 plastic pivotable cursors.
Note: 1958-1961 Triangle logo with Pickett in italics, CHICAGO underneath. Model number under the DIAL RULE label.
Front Scale: C, CI, A, AF, L, FA, LL2, LL1, DS, DT, M
Back Scale: C, S, ST, T, Fractions-Decimal
Note: Red Scale Labels embossed in RED on one of the transparent cursors.
Owned and donated by Ann Kilby, Kingston, Washington.
Ann's parents were scientists at Livermore Labs so she was competent with slide rules at an early age. She used this one while in high school and during her first few years at college. Her university education led her down paths of Zoology, Secondary-education, Physical chemistry, Sinology and Psychotherapy, culminating in a profession of healing arts and counseling.
Expanded Family Biography of Wallace and Ruth Kane and daughter Ann Kilby (7.09MB)

Pickett 101-C Dial Rule (1962) Variation 3

ISRM 04.09.27.05.D1 (In shadow box display).
Pickett 101-C Dial Rule - 10.2cm dia (1962) Variation 3
Made in USA, 10.2cm dia Aluminum disk with 3 plastic pivotable cursors, with scale labels.
Note: 1962-1964 Triangle logo inside circle with PICKETT in caps. MADE IN U.S.A. above the logo, model number 101-C below.
Note: Red Scale Labels embossed in RED on one of the transparent cursors.
Front Scale: C, CI, A, AF, L, FA, LL2, LL1, DS, DT, M
Back Scale: C, S, ST, T, Fractions-Decimal


Pickett 103-ES Mark-Up Calculator

C05
Pickett 103-ES Mark-Up Calculator - 10.2cm dia
Made in USA
Front Scale:
C, CI, A, AF, L, FA, fraction-decimal
Back Scale: Quantity, Cost Basis, Selling Price (mark up)


Pickett 104-C Profit Calculator

REF
Pickett 104-C Profit Calculator - 20.3cm dia
Made in TBD
Front Scales:
% of Margin of Profit on Selling Price
% of Profit Mark-Up from Cost Price
[List Price]
% of Discount from List Price
Back: blank
Archive - Ted White Collection


Pickett 105-C Profit Calculator

REF
Pickett 105-C Profit Calculator - 9.9cm dia
Made in TBD
Front Scales: % of Margin of Profit on Selling Price
% of Profit Mark-Up from Cost Price
[List Price]
% of Discount from List Price
Back: blank
Archive - Ted White Collection


Pickett 106-C Proportional Scale

ISRM 14.07.02.17
Pickett 106-C Proportional Scale - 14.6cm dia
Made by Pickett/Chartpak
Front Scales: Reproduction Size, [Original Size], Percentage of Original Size, Number of Times Reduced
Back: blank
Gift Of Ed Millis Collection


Pickett 107-ES

C14
Pickett 107-ES - 8cm dia
Made in Japan
Front Scale:  [ L, CI, C] D, A, K
Back Scale: Equivalents
Archive - Ted White collection


Pickett 108-ES

REF
Pickett 108-ES - 8cm dia
Made in Japan
Front Scale:  K, A, D [ C CI L ]
Back Scale:  D, T, S, T, S, T, TS
Archive - Ted White Collection


Pickett 109-ES

ISRM 23.02.01.01

Pickett 109-ES - 10.8cm dia
Made in Japan
Front Scale : K, A, D, [ C, CI, EI(spiral)]
Back Scale: L, DI, D, T, S, T, S, T, TS
Belonged To Dr. A. Edwin Harper, Jr. Gift Of son, Stephen A. Harper
Dr. A. Edwin Harper, Jr.(1919-2001) an eminent American psychometrician who worked for the United Presbyterian Church of the USA since 1948. He was born in Lahore, India, the son of a Presbyterian missionary. He was sent to the U.S.A. for his higher education. His BA was from Princeton University in 1941, Masters from Iowas State in 1943 and PhD from Columbia University in 1948. He spent his entire working career in India. He was head of Phsycology and Education and Research at Edwin Christian College. From 1967 he was developing a testing and guidance program for the schools of the North India Synod. His wife also served as a missionary for the Presbyterian Church U.S.A. Dr A Edwin Harper, Jr and Dr VS Misra, were coauthors in their book Research on Examination in India, was published by the National Council of Educational Research and Training (NCERT).


Pickett 110-ES

REF
Pickett 110-ES - 12.8cm dia
Made in Japan
Front Scale : LL3, LL2, LL1, LL0, K, A, D [ C, CI, B, EI (spiral)]
Back Scale: D(spiral), D, V2 [ V1, C(spiral), G, T, S, T, S, T, TS, L ]
Archive - Ted White Collection


Pickett 111-ES

REF
Pickett 111-ES - 12.8cm  dia
Made in Japan
Front Scale: LL3, LL2, LL1, LL0, K, A, D [ C, CI, EI (spiral) ]
Back Scale: /LL3, /LL2, /LL1, /LL0, L, DI, D, T, S, T, S, T, TS
Archive - Ted White Collection


Pickett 112C Metric Converter (4 base disks)

ISRM 18.09.17.42
Pickett 112C Metric Converter (4 disks)
Made in USA - 15.2cm dia
All with C&D scales, including conversions for:
Orange Disk - Linear measure
Maroon  Disk - Dry measure
Yellow Disk - Liquid measure
Blue Disk - Weight measure
Gift of Donald Bachelor Collection


Pickett 114C Pocket Metric Converter

REF
Pickett 114C Pocket Metric Converter
Made in USA - 3.85 inch Diameter
Front Scale : Weight and liquid conversions
Back Scale: Linear Conversions, with instructions
Scan provided by Ric Barline, San Jose, California
Ric Barline's father, Fred Barline, was VP of the Cooke Engineering Company which was founded by Nelson Cooke, who designed the K&E 4139 Cooke Radio Rule. They lived for years in Virginia, then came out to San Mateo, CA to open a new division. Nelson was out to visit many times. Ric was able to meet him.


Pickett Microline 115-T - Decimal Keeper

S525
Pickett Microline 115-T - Decimal Keeper
Made in USA - 1.9" Wide version
Front Scale: D*, X [ Y, CI, C ] D, A, L
Back: Blank
Original Owner: William Baker
Note: The Decimal Keeper scale was invented by Lawrence J. Kamm, "Automatic Decimal Point Slide Rule" U.S.Patent #2,893,630, July 7, 1958


Pickett Microline 115 - Decimal Keeper

ISRM 09.01.12.135
Pickett Microline 115 - Decimal Keeper
Made in USA - Narrow version
Front Scale: D*, X [ Y, CI, C ] D, A, L
Back: Blank
Donated by David Hecht, Alexandria, VA
Note: The Decimal Keeper scale was invented by Lawrence J. Kamm, "Automatic Decimal Point Slide Rule" U.S.Patent #2,893,630, July 7, 1958


Pickett No. 120 Trainer

ISRM 09.10.27.02

Pickett No. 120 Trainer - 1964
Note: This was Pickett's first attempt at a low cost all plastic slide rule. The stock was constructed with white laminations over a black substrate with black plastic end braces glued to the stock.
Made in USA
Front Scale: K, A [ B, T Cot, S Cos, CI, C ] D, L
Back: Blank
Scans and Photos Contributed by Vern Estes.
This model was sold in the 1964 Estes Industries Model Rocketry Catalog. Vernon Estes founded the company on encouragement from G. Harry Stine, who founded the National Association of Rocketry (NAR) in 1958. A purchase order shows that 200 of these were purchased from Pickett for the catalog. Many youths (including the ISRM Curator) were introduced early to slide rules through the Estes Technical Reports to calculate model rocket performance.


Pickett No. 120 Trainer (2nd design - Grey braces)
ISRM 14.07.02.59
Pickett No. 120 Trainer (2nd design - Grey braces).
Note: Second design of low cost plastic stock and slide. Now the stock is one piece of cut sheet plastic with grey braces glued to stock.
Made in USA
Front Scale: K, A [ B, T Cot, S Cos, CI, C ] D, L
Back: Blank
Slide Rule gifted by the Ed Millis Collection, Dallas, Texas. Retail box gifted by R. Kelps of Niles, Michigan.


Pickett No. 120 Trainer (2nd design - Grey braces)
ISRM 22.08.22.02


1963 Aurora Yearbook photos, 1968 Vietnam Photo
Pickett No. 120 Trainer (2nd design - Grey braces).
Note: Second design of low cost plastic stock and slide. Now the stock is one piece of cut sheet plastic with grey braces glued to stock.
Made in USA
Front Scale: K, A [ B, T Cot, S Cos, CI, C ] D, L
Back: Blank
Original owner: Michael Allen Boroff.
Gifted by his son, Eric Boroff of Millersville, MO.
Eric Boroff writes: "I am sending you a couple slide rules my father used during his studies in the ROTC program at Eastern Michigan University. Not sure of his exact graduation date but it was 1963 (Ed. verified by 1963 Aurora Yearbook EMU). Included are slide rule instructions he used for a NATO Weapons Systems class he took (NWEC102). Dad put this knowledge to practical use while serving as a combat engineer in Germany and later in Vietnam. The picture of him (attached) is from his first tour in Vietnam (1968). Thank you for all you do," A 1964 Eastern Michigan Yearbook shows that Mike Boroff was a senior and a member of the Gamma Theta Upsilon Fraternity. The yearbook photo (with glasses) shows his TOTC uniform. "Mick" graduated from Wayne Memorial High School in 1957.


Pickett No. 120 Trainer w/Equivalents (3rd design - Grey braces)
ISRM 14.07.02.99
Pickett No. 120 Trainer w/Equivalents (3rd design - Grey braces).
Note: Third design of low cost plastic stock and slide. Stock is one piece of cut sheet plastic with grey braces glued to stock.Added Equivalents table.
Made in USA
Front Scale: K, A [ B, T Cot, S Cos, CI, C ] D, L
Back: Equivalents table.
Slide Rule gifted by the Ed Millis Collection, Dallas, Texas.


Pickett No.120 Narrow Stock

ISRM 15.03.28.01



Original Retail Box gift of Robert Loach.
Pickett No.120 Narrow Stock
Note: First design of one piece injection molded stock and slide.
Made in USA by Pickett.
Front Scale: K, A [ B, T Cot, S Cos, CI, C ] D, L
Gift of Laurent V. (Larry) Hodes, who used this in school.
Larry writes: "I was born 1947 in Newark, NJ, and was raised in Westfield, NJ. I first used a slide rule in high school chemistry and continued using it at MIT, where I studied engineering, and at Bell Laboratories, Holmdel, NJ. The two things I most liked about using slide rules were that in doing computations, slide rules kept me always aware of orders of magnitude, and bolstered my confidence in being able to interpolate accurately. My subsequent work with digital computers, while facilitating my analytic work (particularly modeling systems), benefited from my having grown up with a slide rule. The photo of me with my wife Enid Holzichter Hodes is from 2005. Enid also used a slide rule way back in high school chemistry at Nutley (NJ) High. She went on to be a college English major and pursued a career as a writer and editor." Her father, Gerard Holzrichter's slide rule is in the PIC/Thornton gallery.


Pickett Microline 120-ES Version 1 (USA)

ISRM 18.09.17.14
Pickett Microline 120-ES Version 1 (USA)
Made in USA - 1.9" - 1.9" Wide version. Inverse scales in standard text
Front Scale: K, A [ B, S Cos, TCot, CI, C ] D, L
Back: Blank
Gift of the Batchelor Collection.



Pickett Microline 120-ES Version 2 (USA)

ISRM 12.06.24.07
Pickett Microline 120-ES Version 2 (USA)
Made in USA - 1.9" - 1.9" Wide version. Inverse scales in Italics
Front Scale: K, A [ B, S Cos, TCot, CI, C ] D, L
Back: Blank

Retail Box End (ISRM Collection)

Donated by the Huang Collection.


Pickett Microline 120-ES Version 2 (Mexico)

ISRM 14.09.21.06
Pickett Microline 120-ES Version 2 (Mexico)
Made in MEXICO - 1.9" Wide version. Inverse scales in Italics
Front Scale: K, A [ B, S Cos, T Cot, CI, C ] D, L
Back: Blank
Gift Of Edward T. Wright, Odenton, Maryland.


Pickett Microline 120-T

ISRM 15.09.05.08
Pickett Microline 120-T - Simplex
Made in USA - 1.9" Wide version
Front Scale: K, A [ B, S Cos, T Cot, CI, C ] D, L
Back: Blank
Gift of Dick Rose of Rose Vintage Instruments, Ohio.

Retail Box End


Pickett Microline 120-T (Italic text)

ISRM 17.08.24.22
Pickett Microline 120-T (Italic text)
Made in USA - 1.9" Wide version, Italic text Right-to-laft scales.
Front Scale: K, A [ B, S Cos, T Cot, CI, C ] D, L
Back: Blank
Dustin E. Morris Collection. Gift Of Nancy Morris, Tempe, Arizona


Pickett 121 Trainer with Trig and Conversions

ISRM 20.08.15.17

Pickett 121 Trainer with Trig and Conversions
Made in USA - Early Square Black Braces version
Front Scale: K, A [ B, T Cot, S Cos, CI, C ] D, L
Back: Equivalents
Gift of Prof. Robert Carlisle of Nederland, Colorado


Pickett 121 Trainer with Trig and Conversions

ISRM 18.12.30.08

Pickett 121 Trainer with Trig and Conversions
Made in USA - Early Square Grey Braces version
Front Scale: K, A [ B, T Cot, S Cos, CI, C ] D, L
Back: Equivalents
Gift of the Peter D. Eickenberry Sr. Collection of Olympia, Washington
Note: This is one of several specimens gifted to ISRM.

Peter D. Eickenberry Sr. writes "The Post Versalog 1460 was my personal slide rule that I acquired from another student while I was in high school 1961-1964. I used it while I was at the University of Michigan (taking engineering), while I worked in the engineering department at Lockheed Shipbuilding, and after joining the Coast Guard, during my Coast Guard career. (34 years) I only stopped using it when affordable had held scientific calculators became readily available. However it had a career before mine. The person I bought it from said he got it from his father who had used it for many years. Some of the others I used occasionally but most were purchased because I realized that slide rules were going to be obsolete in the age of desktop computers that could do the math much faster and much more accurately.". Other slide rules from his collection may be found in other galleries.



Pickett 121 Trig and Conversion

ISRM 14.07.02.47
Pickett 121 Trig and Conversion
Made in USA - 1.5" Wide version
Front Scale: K, A [ B, T Cot, S Cos, CI, C ] D, L
Back: Equivalents
Gift Of Ed Millis of Dallas, Texas


Pickett Microline 121-T Trig and Conversions

ISRM 12.03.02.01
Pickett Microline 121-T Trig and Conversions
Made in Mexico - 1.9" Wide version
Front Scale: K, A [ B, S Cos, T Cot, CI, C ] D, L
Back: Equivalents
Donated by members of the Oughtred Society

Retail Card Picket PN 121C-T


Pickett 125 (1958-1962)

ISRM
Pickett 125 (Narrow Stock)
Made in USA
Front Scale: K, A [ B, CI, C ] D, L
Back Scale: Fractions=Decimals [ S Cos, ST, T Cot, C ] D


Pickett 125 Microline (1964-1975)

ISRM 17.08.24.16
Pickett 125 Microline (Wide Stock)
Made in USA - All Plastic Construction
Front Scale: K, A [ B, CI, C ] D, L
Back Scale: Fractions=Decimals [ S Cos, ST, T Cot, C ] D




Pickett 140 Log Log (1958-1962)

ISRM
Pickett 140 Log Log
Made in USA - 22 scales, Narrow Stock
Front Scale: LL0, LL00, A [ B, S Cos, ST, T Cot, C ] D, K
Back Scale: L, LL1, DF [ CF, CIF, CI, C] D, LL3, LL2

Sleeve


Pickett Microline 140-ES Version 1

ISRM 17.08.24.21
Pickett Microline 140-ES Version 1
Made in USA - Note: All 22 scales Black. Early Scale set.
Front Scale: LL0, LL00, A [ B, S Cos, ST, T Cot, C ] D, K
Back Scale: L, LL1, DF [ CF, CIF, CI, C] D, LL3, LL2
Dustin E. Morris Collection. Gift Of Nancy Morris.


Pickett Microline 140-ES Expanded Log Log Version 2

ISRM 12.06.24.15
Pickett Microline 140-ES Expanded Log Log Version 2
Made in USA - New expanded 25 scale set - All scales Black, Inverse scales italics.

Front Scale: LL1, K, A [ B, S Cos, ST, Sec T, T Cot, C ] D, DI, LL1
Back Scale: LL2, LL3, DF [ CF, CIF, L, CI, C] D, LL2, LL3
Donated by the Huang Collection.


Pickett Microline 140-ES Expanded Log Log Version 3

ISRM 12.06.24.05
Pickett Microline 140-ES Expanded Log Log Version 3
Made in USA - Note: Inverted and -Log scales Red, new 25 scale arrangement.
Note: new LL01 scale instead of LL1
Front Scale: LL01, K, A [ B, S Cos, ST SecT, T Cot, C ] D, DI, LL1
Back Scale: LL2, LL3, DF [ CF, CIF, L, CI, C] D, LL2, LL3
Donated by the Huang Collection..


Pickett Microline 140-T (Version 1)

ISRM 14.07.02.58
Pickett Microline 140-T (Version 1)
Made in USA - 20 scales
Front Scale: LL0, LL00, A [ B, S Cos, ST, T Cot, C ] D, K
Back Scale: Mic L, LL1, DF [ CF, CIF, CI, C] D, LL3, LL2
Gifted by the Ed Millis Collection..


Pickett Microline 140-T Expanded Log Log Version 2

ISRM 12.06.24.14
Pickett Microline 140-T Expanded Log Log Version 2
Made in USA - New expanded 25 scale set - All scales Black, Inverse scales italics.
Front Scale: LL01, K, A [ B, S Cos, ST, Sec T, T Cot, C ] D, DI, LL1
Back Scale: LL2, LL3, DF [ CF, CIF, L, CI, C] D, LL2, LL3
Donated by the Huang Collection..


Pickett Microline 140-T Expanded Log Log Version 2 (Mexico)

ISRM 12.03.02.02
Pickett Microline 140-T Expanded Log Log Version 2 (Mexico)
Made in Mexico - New expanded 25 scale set - All scales Black, Inverse scales italics.
Front Scale: LL1, K, A [ B, S Cos, ST, Sec T, T Cot, C ] D, DI, LL1
Back Scale: LL2, LL3, DF [ CF, CIF, L, CI, C] D, LL2, LL3
Gifted by members of the Oughtred Society

Note: Card was discarded because of adhesive damage to slide rule.


Pickett Microline 140-T Expanded Log Log Version 3

ISRM 21.02.18.01
Pickett Microline 140-T Expanded Log Log Version 3
New expanded 25 scale set - Red Inverse scales.
Note: new LL01 scale instead of LL1
Front Scale: LL01, K, A [ B, S Cos, ST, Sec T, T Cot, C ] D, DI, LL1
Back Scale: LL2, LL3, DF [ CF, CIF, L, CI, C] D, LL2, LL3
.


Pickett Microline 160-ES Student

ISRM 11.11.18.04
Pickett Microline 160-ES Student
Made in USA, Note CI scale font is vertical.
Front Scale: K, A [ B, CI, C ] D, L
Back: Blank



Pickett Microline 160-ES Student
ISRM 14.01.10.23
Pickett Microline 160-ES Student
Made in USA Note CI scale in italics
Front Scale: K, A [ B, CI, C ] D, L
Back: Blank
Original Owner: Laurrie Smith, Period 3 (marked inside sleeve
Gift of the Bill Wehrend Collection, Palo Alto, California
Front Back 1.61MB PDF


Pickett Microline 160-ES Student

ISRM 14.10.09.10
Pickett Microline 160-ES Student
Made in Mexico, Note CI scale in italics
Front Scale: K, A [ B, CI, C ] D, L
Back: Blank
Gift of the Edward Wright, Edmonton, Maryland.


Pickett Microline 160-T Student

ISRM 11.11.18.02
Pickett Microline 160-T Student
Made in Mexico Note CI scale in italics
Front Scale: K, A [ B, CI, C ] D, L
Back: Blank
Note: Italisicized CI scale (compare with US made version below)



Pickett Microline 160-T Student

ISRM 09.10.21.03
Pickett Microline 160-T Student
Made in USA
Front Scale: K, A [ B, CI, C ] D, L
Back: Blank
Donated by Marten C. Jensen. Marty carried this in his pocket while at GE Defense Systems in Syracuse, NY and used along with his Picket 800-T. He graduated from New Mexico State University, with an Electrical Engineering degree in 1958.


Pickett 160C-T Pocket Slide Rule

ISRM 11.11.18.03
Pickett 160C-T Pocket Slide Rule
Made in USA
Front Scale: K, A [ B, CI, C ] D, L
Back: Blank
Note: On Retail Card. Does not appear to include an instruction sheet


Pickett Model 200 (No Trig scales) (1962)
ISRM 18.04.06.77
Pickett Model 200 (No Trig scales) (1962)
Made in USA - Bethlehem Steel Corp. Promotional Slide Rule
Front Scale (Artwork #38): K, A [ B, CI, C ] D, L
Back Scale: Blank [ Logo ] Blank
Note: Black Sleeve has Modern Logo
Gift Of Leroy G. Hausler lCollection


Pickett Model 200 Trig

ISRM 09.01.12.95
Pickett Model 200 Trig
Made in USA National Carbon Co. Promotional Slide Rule
Front Scale (Artwork #38): K, A [ B, CI, C ] D, L
Back Scale: Blank [ S, ST, T ] Blank
Donated by David Hecht, Alexandria, Virginia


Pickett Model 200 Trig RCA (Metal Cursor bars)

ISRM 09.01.12.96
Pickett Model 200 Trig RCA
Made in USA - RCA Promotional Slide Rule
Front Scale (Artwork #38): K, A [ B, CI, C ] D, L
Back Scale: Blank [ S, ST, T ] Blank
Donated by David Hecht, Alexandria, Virginia


Pickett Model 200 Trig (Alhambra, Calif)

ISRM 09.01.12.97
Pickett Model 200 Trig
Made in USA - Zach Radio Supply Promotional Slide Rule
Front Scale (Artwork #38): K, A [ B, CI, C ] D, L
Back Scale: Blank [ S, ST, T ] Blank
Note: R.C. Pickett, Alhambra, Calif. now added to back artwork(moved from Chicago)
Donated by David Hecht, Alexandria, Virginia


Pickett Model 200 Trig (Shell Chemical logo)
ISRM 14.10.10.01

Pickett Model 200 Trig
Made in USA - Shell Chemical Corp. Promotional Slide Rule
Note: Magnesium with metal cursor blocks, Black triangle logo.
Front Scale: K, A [ B, CI, C ] D, L
Back Scale: Shell Logo [ S, ST, T ] Blank
Gift of Bill Wehrend Collection, Palo Alto, California
  Manual 9.06MB PDF


P096 Pickett Model 200 Trig RCA (Plastic Cursor Bars)
Pickett Model 200 RCA Trig
Made in USA - RCA Promotional Slide Rule
Front Scale: K, A [ B, CI, C ] D, L
Back Scale: Blank [ S, ST, T ] Blank


Pickett N200-ES Trig (1960-61)

ISRM 14.01.10.21
Pickett N200-ES Trig
Made in USA - Note: slight design change curved metal end plates, retaining round black logo.
Front Scale: K, A [ B, CI, C ] D, L
Back Scale: Blank [ S, ST, T, C ] D
Gift of the Bill Wehrend Collection.


Pickett N200-ES Trig (Hooked Braces, Modern Logo) (c1964)

ISRM 14.01.10.21
Pickett N200-ES Trig (Hooked Braces, Modern Logo) (c1964)
Made in USA - Note: slight design change hooked metal end plates, modern logo, convex lens.
Front Scale: K, A [ B, CI, C ] D, L
Back Scale: Blank [ S, ST, T, C ] D
Gift of the Philip E. Stanley Collection.


Pickett N200-ES Trig (1964-1975)

ISRM 12.06.24.52
Pickett N200-ES Trig
Made in USA - Note: slight design change curved metal end plates. Modern logo.
Front Scale: K, A [ B, CI, C ] D, L
Back Scale: Blank [ S, ST, T, C ] D
Donated by the Huang Collection..


Pickett N200-ES Trig (1964-1975) Promotional

ISRM 12.06.24.53
Pickett N200-ES Trig
Made in USA - Note: slight design change curved metal end plates with modern logo.
Front Scale: K, A [ B, CI, C ] D, L
Back Scale: Blank [ S, ST, T, C ] D
Sleeve/ Stock Adv: York
Donated by the Huang Collection..


Pickett N200-T

P225
Pickett N200-T
Made in USA - Note: design change in metal end plates.
Front Scale: K, A [ B, CI, C ] D, L
Back Scale: Blank [ S, ST, T ] Blank
Original owner: Michael P. Taylor, retired Director Dow Chemical. Graduated Univ of Houston, TX. Taught at TAMU and UH. Designed/Built the Houston Dow Center &Dow Chemical plant in Toronto.


Pickett Model N200-T (1960-1962)

ISRM 20.06.15.03
Pickett Model N200-T
Made in USA
Black Logo, Curved braces, Nylon bars, Convex lens.
Front Scale: K, A [ B, CI, C ] D, L
Back Scale: [ S, ST, T, C ] D
Gift of Col. Robert E. Loach of Burke, Virginia..
After his military service, Col. Robert E Loach worked as the manager of Human Resources at EDO/DEDM Offices, then as the Chief of the Program Analysis Branch, Division of Budget and Analysis, Office of Resource Management, and later as as Vice President of the U.S.Nuclear Regulatory Commission.


Pickett N200-T Trig
ISRM 18.04.06.78
Pickett N200-T Trig
Made in USA - Note: added C and D scales on back. Modern Logo
Front Scale: K, A [ B, CI, C ] D, L
Back Scale: Blank [ S, ST, T, C ] D
Promo(on sleeve): 1967-68 M.I.T. Sloan Fellowship Program, Western Electric
Gift of the Leroy Hausler Collection.
The Alfred P. Sloan Foundation seeks to stimulate fundamental research by early-career scientists and scholars of outstanding promise. In 1967, Sloan Research Fellowships were awarded to 84 people for a term of 2 years (1967-1968).


Pickett N200-T Trig
ISRM 22.10.04.01

Randall Kirschman's formal education included the University of California, Berkeley followed by Caltech, where he received my Ph.D. My career included the Jet Propulsion Laboratory followed by an electronics instrument division of Eaton Corp. In 1982 he decided to consult and give courses full time.
Pickett N200-T Trig
Made in USA - Round Black logo, curved braces Logo, convex lens
Front Scale: K, A [ B, CI, C ] D, L
Back Scale: Blank [ S, ST, T ]
Promo(on sleeve): National Science Teachers Association. 1962 Convention. "Compliments of Pickett Slide Rules"
Gift of Randall Kirschman, Ph.D.of California.
Randall writes about this slide rule: "I was born near Silicon Valley (although it wasn't called that at the time) and I have lived most of my life in the Silicon Valley area. I became interested in electronics at an early age, and it has been my career and hobby ever since. As I recall, this pocket Pickett was awarded in my senior year at high school for a brief math treatise. During my science and engineering classes at high school and college a slide rule was essential."


Pickett N200-T Trig (1964-1975)

ISRM 11.11.11.04
Pickett N200-T Trig
Made in USA - Note: slight design change in metal end plates (hooked). Modern logo.
Front Scale: K, A [ B, CI, C ] D, L
Back Scale: ADV [ S, ST, T, C ] D
BackAdv: Sola Basic Industries - Sola Basic Industries was incorporated in Wisconsin on February 17, 1888, as Froedtert Grain & Malting Company. The name was changed to Froedtert Corporation in 1951, to Basic Products Corporation in 1957, and finally in October 1965 to Sola Basic Industries.
Donated by Carlee Heit in memory of her husband, Ray Heit Collection
Raymond Anthony Heit (1957-2003) earned a Civil Engineering degree from the University of Cincinnati, and was a Registered Civil Engineer in Ohio and Texas and a Licensed Surveyor in Ohio. Raymond had a creative and productive career at Factory Mutual, Inc., Union Carbide, Inc, and Kellog-Brown & Root, Inc. He also collected slide rules and slide charts, which now reside in the ISRM archives.


Pickett Model 201-S
Economic Purchase Slide Rule, K35

REF
Pickett Model 201-S Economic Purchase Slide Rule, K35
Made in USA - Copyright 1955 O.C. Lang
Front Scale: K, A [ B, CI, C ] D, L
Back Scale: R [ C, S ] Q
Archive - Scan provided by Ronald E. Kuc, Canonsburg, PA


Pickett Model 300 Log

ISRM 09.01.12.6

c1949 stock design
Pickett Model 300 Log Duplex
Made in USA - Notice Copyright and city on left of slide.
Front Scale: LL1, A [ B, T cot, S Cos, C ] D, LL2
Back Scale: LL3, DF [ CF, CIF, CI, C ] D, L
Owner Markings on sleeve: R.B. Bevan
Donated by Michael Frey of New Hampshire


Pickett Model 300 Log

ISRM 22.07.06.71
Pickett Model 300 Log Duplex
Made in USA - Notice Copyright and city on left of slide.
Front Scale: LL1, A [ B, T cot, S Cos, C ] D, LL2
Back Scale: LL3, DF [ CF, CIF, CI, C ] D, L
Owner Markings on sleeve: R.B. Bevan
Gifted by Cindy Tate, Bozeman, Montana. Victor B. tate Collection.


Pickett Model 300 Log Version 2

ISRM 21.05.12.01
Pickett Model 300 Log Version 2
Made in USA
Front Scale: LL1, A [ B, T cot, S Cos, C ] D, LL2
Back Scale: LL3, DF [ CF, CIF, CI, C ] D, L
Donated by Wayne Keene


Pickett Model 300 Log Version 2

ISRM 20.04.01.041
Pickett Model 300 Log Log Version 3
Made in USA - Square braces, Flat lens, Traingle logo.
Front Scale: LL1, A [ B, T cot, S Cos, C ] D, LL2
Back Scale: LL3, DF [ CF, CIF, CI, C ] D, L
Donated by Phillip E. Stanley
Note: Plastic case shows model number as N300.


Pickett N300-ES Log Log

ISRM 20.04.01.110

c1962 stock design
Pickett N300-ES Log Log Duplex
Made in USA
Front Scale: LL1, A [ B, T, S, C ] D, LL2
Back Scale: LL3, DF [ CF, CIF, CI, C ] D, L
Gift Of Phillip E. Stanley.


Pickett N300-ES Log Log

ISRM 22.10.13.21
Pickett N300-ES Log Log Duplex c1964
Made in USA - Modern logo, Curved braces, Convex lens,
Front Scale: LL1, A [ B, T, S, C ] D, LL2
Back Scale: LL3, DF [ CF, CIF, CI, C ] D, L
Gift Of Leslie Dormamen.of Wheaton, Illinois


Pickett N300-T Log Log

ISRM 19.02.21.03
Pickett N300-T Log Log Duplex
Made in USA
Note: Curved braces, Round black logo. Suede sleeve has modern logo
Front Scale: LL1, A [ B, T, S, C ] D, LL2
Back Scale: LL3, DF [ CF, CIF, CI, C ] D, L
Gift Of Gregory and Joy Playle, Alexandria, Virginia.


Pickett N300-T Log Log

ISRM 17.08.24.20

Retail Box
Pickett N300-T Log Log Duplex
Made in USA - Modern Logo, Hooked Braces, Black Text.
Front Scale: LL1, A [ B, T Cot, S Cos, C ] D, LL2
Back Scale: LL3, DF [ CF, CIF, CI, C ] D, L
Gift Of Nancy Morris. Dustin Morris Collection



Pickett Model No.400 Business Rule (1947)
ISRM 13.12.03.04
Pickett Model No. 400 Business Rule (1st design)
Made in USA by Pickett - Triangle Pickett logo
Note: Magnesium stock, Steel cursor blocks, stator grooved on all edges
Note: Special C% and R% scales for Cost and Retail mark up. DF & D scale labeled as RF & R.
Front Scale (artwork: 43): K, A [ B, CI, C ] D, L
Back Scale: R%, RF [ CF, Unit, Doz(C%), Gross, C ] R, C%, Gross, Doz(R%), Unit




Pickett Model No.400 Business Rule (1959)

ISRM 20.04.01.177
Pickett Model No. 400 Business Rule (2nd design)
Made in USA by Pickett - Triangle Pickett logo
Note: Magnesium stock, Steel cursor blocks, stator grooved on all edges
Note: Special C% and R% scales for Cost and Retail mark up. DF & D scale labeled as RF & R.
Front Scale (artwork: 43): K, A [ B, CI, C ] D, L
Back Scale: R%, RF [ CF, Unit, Doz(C%), Gross, C ] R, C%, Gross, Doz(R%), Unit
Gift Of Phillip E. Stanley.


Pickett Model 400-T Business Rule (1960)
ISRM 14.01.03.05
Pickett Model 400-T Business Rule (3rd design)
Made in USA by Pickett - Round Black Pickett logo
Note: Aluminum stock, Nylon cursor blocks, flat lens, Square Braces
Front Scale (artwork: 43): K, A [ B, CI, C ] D, L
Back Scale: R%, DF [ CF, Unit, Doz(C%), Gross, C ] D, Gross, Doz(R%), Unit
Gift Of Phillip Rodley New Zealand



Pickett Model 400-ES Business Rule (1962)
REF
Pickett Model 400-ES Business Rule
Made in USA by Pickett - Round Black Pickett logo
Note: Aluminum stock, Nylon cursor blocks, Curved Braces
Front Scale (artwork: 43): K, A [ B, CI, C ] D, L
Back Scale: R%, DF [ CF, Unit, Doz(C%), Gross, C ] D, Gross, Doz(R%), Unit
Archive - Scans of Slide Rule and Manual Courtesy of Gregg Scott Collection


Pickett Model N400-ES Business Rule (c1964-1975)
ISRM 18.04.06.71
Pickett Model N400-ES Business Rule
Made in USA by Pickett - Box has Modern Pickett logo
Note: Aluminum stock, Nylon cursor blocks, hooked Braces, Round Black Pickett logo.
Front Scale (artwork: 43): K, A [ B, CI, C ] D, L
Back Scale: R%, DF [ CF, Unit, Doz(C%), Gross, C ] D, Gross, Doz(R%), Unit
Gift Of Leroy G. Hausler Collection


Pickett Model N400-T Business Rule (c1962)
REF
Pickett Model N400-T Business Rule
Made in USA by Pickett - Round Black Pickett logo
Note: Aluminum stock, Nylon cursor blocks, Curved Braces
Front Scale (artwork: 43): K, A [ B, CI, C ] D, L
Back Scale: R%, DF [ CF, Unit, Doz(C%), Gross, C ] D, Gross, Doz(R%), Unit
Archive - Scans of Slide Rule and Manual Courtesy of Gregg Scott Collection


Pickett & Eckel 500 Ortho Phase Log Log

ISRM 22.05.02.02


Richard E. Bateman (1924-2006)
Photos: 2005(L) & 1954(R)
Pickett & Eckel 500 Ortho Phase Log Log snB140477
Made in USA - ©1948 - Note: P&E Logo with "Trademark" next to logo
Note: Magnesium construction with silkscreened scales. Metal Cursor blocks.
Note: Black dot labels on CI Scale: Note: Scale labels use Times Romans" font.
Front Scale (artwork: G10)
LL0, LL00, A [ B, T Cos, ST, S Cos ] D, K

Back Scale (artwork: H10)
L, LL1, DF [ CF, CIF, CI, C ] D, LL3, LL2

Original Owner: Richard E. Bateman 1924-2006
Gift of his son, Marc G. Bateman of Shoreline, Washington
Richard "Dick" Bateman obtained this Pickett in college in 1950. He attended high school in Dayton, Washington. He served from 1942-45 in World War II as a navigator on a B-24 based at Horsham St. Faith in England, flying 26 bombing missions over Europe. He was discharged as a 1st Lieutenant. He married his wife Marilyn in 1945, then went on to graduate from the University of California at Berkeley with a BA in Astronomy. From 1950 through 1989, Richard was employed by Douglas Aircraft Corporation in El Segundo, CA, Boeing in Seattle, WA and the Jet Propulsion Laboratory in La Canada, CA. He wrote a book on the early Portuguese explorations of the late 15th and early 16th century, which combined his interest in history with his WWII navigational experience and his career in the field of military and commercial satellite applications.


Pickett & Eckel 500 Ortho Phase Log Log

ISRM 12.06.28.01
Pickett & Eckel 500 Ortho Phase Log Log
Made in USA - ©1948 - Note: No "Trademark" next to logo
Note: Magnesium construction with silkscreened scales. Metal Cursor blocks.
Note: Black dot labels on CI Scale: Note: Scale labels use Times Romans" font.
Front Scale (artwork: G10)
LL0, LL00, A [ B, T Cos, ST, S Cos ] D, K

Back Scale (artwork: H10)
L, LL1, DF [ CF, CIF, CI, C ] D, LL3, LL2

Donated by Peter Chmielowiec, Louisville, Colorado


Peter used this slide rule while attending the University of Chicago Laboratory High School c1963-1967. He enlisted in the U.S. Army, served in Vietnam from 1968-1969, and spent 20 years in the service of his country. He is an active bicycle rider in the Boulder, Colorado area.


Pickett & Eckel 500 Ortho Phase Log Log

ISRM 13.07.25.02

Phillip C. Murray (1920-2008)
Pickett & Eckel 500 Ortho Phase Log Log - sn09C3296
Made in USA - ©1948 Note: No "Trademark" next to logo
Note: Magnesium construction with silkscreened scales. Metal Cursor blocks.
Note: Black dot labels on CI Scale: Note: Scale labels use Times Romans" font.
Front Scale (no artwork code)
LL0, LL00, A [ B, T, ST, S ] D, K

Back Scale (no artwork code)
L, LL1, DF [ CF, CIF, CI, C ] D, LL3, LL2

Gifted by Maureen White of Minneapolis, Minnissota, neice of Phillip Murray
This slide rule, was owned and used by Phillip C. Murray (1920-2008) in his career. Phil attended Culver Military Academy in Indiana then received his degree in engineering from Purdue University, class of 1942 (Phi Delta Theta). He served in the U.S. Army from 1942-1946 and later employed by Pillsbury as a mechanical engineer. He traveled around the world helping to set up operational facitlies for the company. Phil was a lifelong member of Purdue's Phi Delt and was a significant donor and loyal supporter of their annual fund and educational foundation for many years. Phil was a gifted storyteller, avid bowler and spent his later years volunteering for Habitat for Humanity.


Pickett & Eckel 500 Ortho Phase Log Log (New font)

ISRM 22.07.06.43

Pickett & Eckel 500 Ortho Phase Log Log - sn2D01116
Made in Chicago, IL. USA by Pickett & Eckel - Note: No "Trademark" next to logo
Note: Magnesium construction with silkscreened scales. Metal Cursor blocks.
Note: Transistional model.Updated Scale labels from Times Roman to Helvitaca font.
Front Scale (Artwork #32): LL0, LL00, A [ B, T, ST, S ] D, K
Back Scale (Artwork #33): L, LL1, DF [ CF, CIF, CI, C ] D, LL3, LL2
Gifted by Cindy Tate of Bozeman, Montana. Victor B. Tate II Collection.


Pickett & Eckel 500 Ortho Phase Log Log

ISRM 19.10.27.04

Pickett & Eckel 500 Ortho Phase Log Log - sn3C19838
Made in Chicago, IL. USA - Note: No "Trademark" next to logo
Note: Magnesium construction with silkscreened scales. Metal Cursor blocks.
Note: Updated Scale labels use Helvitac font.
Front Scale (Artwork #32): LL0, LL00, A [ B, T, ST, S ] D, K
Back Scale (Artwork #33): L, LL1, DF [ CF, CIF, CI, C ] D, LL3, LL2
Gifted by Jerome (Jerry) Drews of Kent, Washington


Pickett N500-ES Log Log

ISRM 13.07.03.17
Pickett N500-ES Log Log Duplex - c1958
Made in USA - square braces, extended nylon cursor bars, flat lens, round black logo
Front Scale (Artwork #54): LL0, LL00, A [ B, ST, T, S, C ] D, K
Back Scale (Artwork #55): L, LL1, DF [ CF, CIF, CI, C ] D, LL3, LL2
Original owner: (Name marked on sleeve flap) Denny Yeates
Donated by Daniel Swerdlow, Bethesda, Maryland
Daniel Swerdlow is a second-generation engineer from New York City and has degrees in electrical engineering from New York University and Michigan State University. He has done telecommunications engineering for major corporations and currently lives in the Washington, DC area and works at the United States Patent and Trademark Office. Dan has gifted most of his collection to ISRM to support the museum. Many specimens may be found in the various ISRM galleries.


Pickett N-500-ES HI-Log Log

ISRM 09.01.12.63
Pickett N-500-ES - Hi-Log Log Duplex - c1962
Made in USA - radius braces, round black logo
Front Scale (Artwork #83): +LL1, -LL1, A [ B, T Cot, ST, S Cos, C ] D, DI, K
Back Scale (Artwork #84): +LL2, -LL2, DF [ CF, CIF, L, CI, C ] D, +LL3, -LL3
Note: Grey sleeve with belt ring
Donated by David Hecht of Alexandria, Virginia
David is a Collector and Member of the Oughtred Society who has Donated many slide rules to ISRM and its SR Loaner Program. David's first SR was a circular Pickett 101-C, which he acquired in high school. His interest led his parents to give him a K&E 68-1210 as a graduation gift. After college, David worked fifteen years for the U.S. Navy as a contracting officer and is now retired from Civil Service. His slide rule collection specializes in Picketts and he enjoys traveling to board game conventions.


Pickett N-500-ES HI-LogLog (round yellow logo)

ISRM 10.03.02.03

Robert C. Eaton
Pickett N-500-ES - HI-LogLog Duplex - c1962
Made in USA - radius braces, round yellow logo
Front Scale: +LL1, -LL1, A [ B, T Cot, ST, S Cos, C ] D, DI, K
Back Scale: +LL2, -LL2, DF [ CF, CIF, L, CI, C ] D, +LL3, -LL3
Donated by Prof. Robert C. Eaton, PhD., Boulder, Colorado
Robert C. Eaton (1946 - present) used this slide rule starting in his student years in 1963, and throughout his career as a scientist in biophysics. Trained at several different universities in the US & Europe. Worked as research scientist at Scripps Institution of Oceanography, and later became a Professor and Department Chair at the Univ. of Colorado at Boulder. Professor Eaton studied the neural control of movement using high-speed film & digital cameras, electrical recordings from brain cells, and computer models of neural network processes. After computers became commonplace, he often surprised students and associates by pulling out this slide rule to do a quick analogue calculation. Robert retired in 2003 and lives in Boulder, Colorado with his wife Katie.


Pickett N-500-ES HI-Log Log (Modern Logo)

ISRM 12.01.30.01 (Formerly 11.11.22.02)
Pickett N-500-ES - Hi-Log Log Duplex - 1964
Made in USA - radius braces, Modern logo
Front Scale: +LL1, -LL1, A [ B, T Cot, ST, S Cos, C ] D, DI, K
Back Scale: +LL2, -LL2, DF [ CF, CIF, L, CI, C ] D, +LL3, -LL3
Gift of Mary Ann Schwartz, of Doylestown, Pennsylvania. Belonged to husband
Ronald J. Schwartz (1942-2016) studied at Drexel University, Received a BS in 1974 in Electrical Engineering, then worked for the Johnsville Naval Air Development Center until retirement in 2002.


Pickett N-500-ES HI-Log Log (Modern Logo)

ISRM 12.01.30.01 (Formerly 11.11.22.02)
Pickett N-500-ES - Hi-Log Log Duplex - 1974
Made in USA - Curved braces, Convex lens, Modern logo, with Granthum Schools logo.
Front Scale: +LL1, -LL1, A [ B, T Cot, ST, S Cos, C ] D, DI, K
Back Scale: +LL2, -LL2, DF [ CF, CIF, L, CI, C ] D, +LL3, -LL3
Gift of Barry J. Altman of Plymouth, Minnessota.
Barry used this slide rule as part of a course with Granthum Schools in Los Angeles, California.


Pickett N-500-ES HI-Log Log (Modern Logo - Right Side)
ISRM 12.05.31.01
Pickett N-500-ES - Hi-Log Log Duplex - 1974
Made in USA - Curved braces, Convex lens,(Modern Logo - Right Side). Sold for $13.75 new.
Front Scale: +LL1, -LL1, A [ B, T Cot, ST, S Cos, C ] D, DI, K
Back Scale: +LL2, -LL2, DF [ CF, CIF, L, CI, C ] D, +LL3, -LL3
Gift of Chris Williamson of Apollo Beach, Florida.


Pickett N500-T Log Log

ISRM 21.10.25.03
Pickett N500-T Log Log Duplex - c1958
Made in USA - square braces, extended nylon cursor bars, flat lens, round black logo
Front Scale (Artwork #54): LL0, LL00, A [ B, ST, T, S, C ] D, K
Back Scale (Artwork #55): L, LL1, DF [ CF, CIF, CI, C ] D, LL3, LL2
Gift of Lynn Ingram of Maudlin, South Carolina.
Lynn Ingram is a retired Project Management Professional (PMP) from KEMET Electronics Corporation. He received a BS in Industrial Engineerring from North Carolina State University (1970-1974) and an MBA from Furman University (1975-1978). He is an accomplished artist which refects his Christian values.Visit his website.


Pickett N-500-T HI-Log Log

ISRM 22.02.17.02
Pickett N-500-T - HI-Log Log Duplex - 1962
Made in USA in Chicago, Illinois. Round Black Logo.Flat lens
Front Scale: +LL1, -LL1, A [ B, T Cot, ST, S Cos, C ] D, DI, K
Back Scale: +LL2, -LL2, DF [ CF, CIF, L, CI, C ] D, +LL3, -LL3
Original Owner (under flap): Scott Hartley.:
Gift of Randolph J. Young of Mainseville, Ohio..


Pickett N-500-T HI-Log Log

ISRM 19.02.21.01
Pickett N-500-T - HI-Log Log Duplex - 1964-1975
Made in USA in California. Modern Logo.
Front Scale: +LL1, -LL1, A [ B, T Cot, ST, S Cos, C ] D, DI, K
Back Scale: +LL2, -LL2, DF [ CF, CIF, L, CI, C ] D, +LL3, -LL3
Gift of Gregory and Joy Playle of Alexandria, Virginia.


Pickett 505-ES Accuraspeed Slide Rule

REF

Pickett 505-ES Accuraspeed Slide Rule - 1970
Made in USA, designed by E.G. Saenz
Front Scale: √, √, A [ C, ∛ 1, ∛ 2, ∛ 3 ] D
Back Scale: K, D [ B, √, √, CI, C ] ∛ 1, ∛ 2, ∛ 3
Photo courtesy of Brian Sheltra, Shawnee, Kansas.
Note: The Accuraspeed Slide Rule was designed by E.G. Saenz, Jr. of Corpus Christi, Texas, was a physics and mathematics teacher at Flour Bluff High School. who began to market a slide rule he designed for students competing in the Texas University Intrascholastic League slide rule competitions. However, because it had the potential of hurting sales from L.R. Ridgeway Entreprises who commisioned Pickett to make the Texas Speed Rule Model 905-ES, Ridgeway was able to get the State of Texas to ban the use of the 505 Accuraspeed Slide Ruleunder the premise that it was not a standard slide rule. Saenz sued the UIL for antitrust violations under the Sherman Act. (1972 1973-2 Trade Cases 74,803 E. G. SAENZ, Plaintiff-Appellant, v. UNIVERSITY INTERSCHOLASTIC LEAGUE et al., Defendants-Appellees). Saenz lost his case in the Federal Court of Appeals ruling in 1973 as the State was allowed immunity. The 8 page manual "How to use the Accuraspeed model Slide Rules" was © by E.G. Saenz 30Nov69, Library of Congress ref: A136108.


Pickett No. 510 Business & Finance Rule 1949
ISRM 21.02.19.01
Pickett No. 510 Business & Finance Rule snB115838
Made in USA. Made of Magnesium and Stainless steel. Rounded braces. Metal Blocks with flat plastic lens. Triangle logo.
Front Scale (artwork #29): S1, S2 [ C2, L, 1/C, C ] D, S3
Back Scale (artwork #28): RF [ CF, C%(R%), C ] R, C%


Pickett 510-T Business & Finance Rule 1958

REF
Pickett 510-T Business & Finance Rule
Made in USA - Aluminum, square braces, Round black Logo
Front Scale: S1, S2 [ C2, L, 1/C, C ] D, S3
Back Scale: RF [ CF, C%(R%), C ] R, C%
Archive - Phil Benchoff collection


Pickett N-515-T Electronic CIE logo

ISRM 21.06.10.23
Pickett_N-515-T_Electronic CIE logo
Made in USA - For Cleveland Institute of Electronics
Front Scale: (LG), (fx)2p, A [(Cr)B, S, T, (Lxor Cx)CI, Xlor Fr-C] D(XL), L, Ln
Back Side: Reactance formula, Ohm's law, etc
Bob Dehn's Collection gifted by wife Fran (McGroary) Dehn of Menlo Park, California.

CIE Ads from Popular Science and Radio-electronics 1965-1968


Pickett N-515-T Electronic CIE Logo

ISRM 10.12.12.03
Pickett N-515-T Electronic CIE Logo - 1969
Made in USA - For Cleveland Institute of Electronics
Front Scale: (LG), (fx)2p, A [(Cr)B, S, T, (Lxor Cx)CI, Xlor Fr-C] D(XL), L, Ln
Back Side
Reactance formula, Ohm's law, etc
Donated by Andrew David (Andy) Keller, Longmont, Colorado
Mail order kit. and Promotional Pamphlet (2.34 MB PDF)


Pickett N-515-T Electronic CIE New Logo

ISRM 18.09.17.10
Pickett N-515-T Electronic CIE Logo
Made in USA - For Cleveland Institute of Electronics, Modern Pickett Logo
Front Scale: (LG), (fx)2p, A [(Cr)B, S, T, (Lxor Cx)CI, Xlor Fr-C] D(XL), L, Ln
Back Side
Reactance formula, Ohm's law, etc
Donated by Donald S.Batchelor Collection


Pickett 520 - MIL-C-4318-B Type A-1 USAF Aerial Slide Rule

ISRM 18.04.06.84
Pickett 520 - MIL-C-4318-B Type A-1 USAF Aerial Slide Rule
Made in USA by Pickett. Magnesium stock.
Front Scale: L, A, DF [ CF, CIF, T, S, C ] D, DI, K
Back Scale: Ground Size Meters, Feet, Ground Speed, [Image size, Cycling Time, Focal Length ] Altitude
Gift of Leroy Hausler Collection
USAF Manual 8.69Mb


Pickett N520-T USAF Aerial Photo
MIL-C-4318-B Type A-1

ISRM 14.11.04.01

Pickett N520-T USAF Aerial Photo- MIL-C-4318-B Type A-1
Made in USA by Pickett. Aluminum stock.
Front Scale: L, A, DF [ CF, CIF, T, S, C ] D, DI, K
Back Scale: Ground Size Meters, Feet, Ground Speed, [Image size, Cycling Time, Focal Length ] Altitude
Original owner used this in Rotorau, New Zealand, assumed to be part of the Royal New Zealand Air Force.
Gift of Phillip Rodley, Upper Hutt, New Zealand.
USAF Manual 8.69Mb


Pickett Model 560 US Navy Photographic Interpretation
Slide Rule. Got a scan or one to donate?



Pickett N-525-ES Stat Rule (1965)

ISRM 23.03.07.01.X
Pickett N-525-ES Stat Rule ©1965
Made in USA by Pickett for Human Factors Institute
Front Scale: sp, p [ q, z, pL, y, N ] d, X2, Sig. Level
Back Scale: (p + q)n, X2df , A [ B, BI, L, CI, C ] D, ODD√, EVEN√ 
Note: Black leather sleeve with triangle logo
Gift of Eric Anderson of Elmhurst, Illinois.



Pickett N-525-T Stat Rule

ISRM 14.10.09.06.X

Pickett N-525-T Stat Rule
Made in USA by Pickett for Human Factors Institute
Front Scale: sp, p [ q, z, pL, y, N ] d, X2, Sig. Level
Back Scale: (p + q)n, X2df , A [ B, BI, L, CI, C ] D, ODD√, EVEN√ 
Note: Black leather sleeve with triangle logo
Gift of Edward T. Wright, Odenton, Maryland

Instructions 19.3Mb


Pickett N-531-ES Capitol Radio Engineering Institute

ISRM 12.06.24.50 (Replaced 10.12.12.04)
Pickett N-531-ES Capitol Radio Engineering Institute - 1960
Made in USA by Pickett for CREI
Front Scale: L, Ln, A [ B, CI, C ] D, 2π, K
Back Scale: LL2, LL1 [ S Cos, ST, T Cot, C ] D, LL3
Donated by the Huang Collection..


Pickett N-531-ES Capitol Radio Engineering Institute

ISRM 14.07.03.65
Pickett N-531-ES Capitol Radio Engineering Institute - 1964-75
Note: Modern Logo
Made in MEXICO by Pickett for CREI
Front Scale: L, Ln, A [ B, CI, C ] D, 2π, K
Back Scale: LL2, LL1 [ S Cos, ST, T Cot, C ] D, LL3
Gift of the Ed Millis Collection, Dallas, Texas.


Pickett PEC-531 General Cable
Cable Pressurization Computer

ISRM 06.12.30.01
Pickett PEC-531 General Cable - Cable Pressurization Computer
Made in USA by Pickett for General Cable, c1970
Front Scale: Air Flow(F) [ Pnumatic Resistance(RI), Paper Pulp(18,20,22,24,28 Gauge), Distance(D) ] Pressure Droip(P), Pnuematic Resistance(RT)
Back Scale: [ Pnumatic Resistance(RI), P.I.C.(18,22,24,28 Gauge), Distance(D) ]
Donated by Bram Wouters
Sleeve:Instructions


Pickett N-535-T Electronic Technician

REF
Pickett_N-535-T_Electronic Technician
Made in USA - Designed by Chan Street - 1970
Front Scale: L, Ln, AI(Cr), Lr [ B(Lr), ST, T Cot, S Cos, C ] D(F,XL,E,R,W), DI(Xc), K
Back Scale: Cr [ Lr, (C,L or I) ] (F,XL,E, R,W) Back Side: Formulas, Ohm's law, Equivalents, etc.
Archive - Jerry McKenna Collection


REF Pickett N-535-ES Electronic Technician
Pickett N-535-ES Electronic Technician
Made in USA - Designed by Chan Street - 1970 Eastfield Digital Electronics
Front Scale: L, Ln, AI(Cr), Lr [ B(Lr), ST, T Cot, S Cos, C ] D(F,XL,E,R,W), DI(Xc), K
Back Scale: Cr [ Lr, (C,L or I) ] (F,XL,E, R,W) Back Side: Formulas, Ohm's law, Equivalents, etc.
Archive - Scan provided by Frank Robertson
Note: Eastfield Digital Electronics is a Dallas County Community College located in Mesquite, Texas.


Pickett 540-T Jet Thrust

ISRM 11.12.16.02
Pickett 540-T Jet Thrust
Made in USA - for Pratt & Whitney Aircraft - c1959
Artwork: Front Scale (Artwork #64): Inlet Air Temperature [ PT (Inlet Air Pressure), C (Indicated) ] D (Corrected)
Back Scale (Artwork #63): STD., Exhaust Temperature [ Inlet Air Temperature, Indicated deg C, Indicated deg F ] Corrected deg C, Corrected deg F ]
Original Owner (Marked on Sleeve): Lambert; Gold stamped on flap: SERVICE SCHOOL


REF Pickett N540-T CS126 Jet Thrust
Pickett N540-T CS126 Jet Thrust
Made in USA - for Pratt & Whitney Aircraft - c1963
Front Scale: Inlet Air Temperature [ Inlet Air Pressure, Indicated ] Corrected
Back Scale: Exhaust Temperature [ Inlet Air Temperature, Indicated deg C, Indicated deg F ] Corrected deg C, Corrected deg F ]
Archive - Scan provided by Olivier Cassou, France


Pickett N550-T Warren-Knight Weight rule No 1373-ET

REF
Pickett N550-T (Version 1) Warren-Knight Weight rule No 1373-ET
Made in USA - for Warren-Knight Co. Philadephia, PA - 1962
Front Scale: L, A, DF [ CF, CIF, T, S, C ] D, DI, K
Back Scale: Thickness (A) [ Width (B), Length (C), Material (D), Shape (E) ] Weight (F)
Archive - Scan provided by Greg Scott, Ozmanor.com, Australia.


Pickett N550-T Warren-Knight Weight rule No 1373-ET

REF
Pickett N550-T (Version 2) Warren-Knight Weight rule No 1373-ET
Made in USA - for Warren-Knight Co. Philadephia, PA - 1962
Front Scale: L, A, DF [ CF, CIF, T, S, C ] D, DI, K
Back Scale: Thickness (A) [ Width (B), Length (C), Material (D), Shape (E) ] Weight (F)
Archive - Scan provided by Olivier Cassou, France


Pickett Model 596 Range Error slide rule
Got a scan or one to donate?



Pickett Model 598 "R" Parameter Slide Rule

ISRM 22.07.06.04

Pickett Model 598 "R" Parameter Slide Rule
Made in USA -
Front Scale (Artwork 325): Pulse 5 - Range Rate (Volts) [ Pulse 3 True Air Speed (Volts), Index ] B
Back Scale (Artwork 328): B [ Pulse 7 paT (Volts), G ] R Number
Gift Of Cindy Tate of Bozeman, Montana.
Note: It is beleived by the curator of ISRM that this slide rule is an aid in determining the sonic airborne thermometer-anemometer to determine electronically derived true air speed of air craft. It uses the differences of timed pulses to determine the true air speed and accounts for atmospheric pressure (pa). If anyone has any additional info on this please let me know.
.


Pickett Model 600 Log Log (magnesium)
ISRM 18.04.06.80
Pickett Model 600 Log Log Duplex
Made in USA - Triangle logo, machined cursor bars, rounded stamped braces, grooved stock
note construction, scales difer to the 600 ISRM 17.08.24.11
Front Scale(Artwork 53): LL1, LL1, A [ B, T, ST, S Cos, T Cot, C ] D, DI, K
Back Scale: LL2, LL2, DF [ CF, CIF, CI, L, C ] D, LL3, LL3
Original Owner: Charles Stevens (on sleeve
Gift Of Leroy G. Hausler Collection


Pickett Model 600 Log Log
ISRM 20.04.01.366
Pickett Model 600 Log Log Duplex
Made in USA - Triangle logo, machined cursor bars, rounded stamped braces, grooved stock
Front Scale(Artwork 81):
LL1+, LL1-, A [ B, ST, T Cot, S Cos, C ] D, DI, K
Back Scale: LL2+, LL2-, DF [ CF, Ln, L, CI, C ] D, LL3+, LL3-
Gift Of Philip Stanley Collection


Pickett Model 600 Log Log
ISRM 20.04.01.366
Pickett Model 600 Log Log Duplex
Made in USA - Triangle logo, machined cursor bars, cast clamshell braces, grooved stock
Front Scale(Artwork 81):
LL1+, LL1-, A [ B, ST, T Cot, S Cos, C ] D, DI, K
Back Scale: LL2+, LL2-, DF [ CF, Ln, L, CI, C ] D, LL3+, LL3-
Gift Of Terry Whitaker Collection of Florida


Pickett Model 600 Log Log
ISRM 17.08.24.11
Pickett Model 600 Log Log Duplex
Made in USA - note construction, scales difer to the N600
Front Scale(Artwork 81): LL1+, LL1-, A [ B, ST, T Cot, S Cos, C ] D, DI, K
Back Scale: LL2+, LL2-, DF [ CF, Ln, L, CI, C ] D, LL3+, LL3-
Dustin E. Morris Collection. Gift Of Nancy Morris


Pickett N600-ES Log Log (1959)
ISRM 22.05.06.02


Theodore ("Ted") A. Ulrich was born in Spokane, Washington and moved with his family to Ft. Collins six months later. Attending schools in both Ft. Collins and Boulder, Ted graduated with the Boulder HS class of 1961. Ted received an appointment to the United States Merchant Marine Academy, Kings Point, NY. He graduated from Kings Point in August of 1965. (Cont'd on right)
Pickett N600-ES Log Log Duplex
Made in USA by Pickett - circa 1962. First of the -ESs. Square braces, Round Black Logo, Flat lens. A
Front Scale (all black text): LL1+.01/-.01, A [ B, ST, T Cot, S Cos, C ] D, DI, K
Back Scale (all black text): LL2+.1/-.1, DF [ CF, Ln, L, CI, C ] D, LL3+1/-1
Belonged to Theodore (Ted) E. Urlich, Lieutenant Commander, U.S. Coast Guard (Ret.) 1943-2021.
Gift Of Nancy Ulrich of Denver Colorado.
(Cont'd):Ted served his active duty in the Port of New York. He then enrolled in Fordham University (NY) School of Law and graduated in the class of 1970.Ted also served as Law Clerk to the Hon. John M. Canella of the Southern District of New York. Ted joined the law firm of Cadwalader, Wickersham and Taft as an Admiralty and International lawyer, rising to partner, and remained with that firm for twenty-four years. Ted accepted a position with Popham Haik, a Denver office of the Minneapolis-based firm. Ted's many hobbies included woodworking and ship modeling. He crafted several ship models, called "scratch built". The garnered him an award for that model. Ted met Nancy Allison at a Kings Point social event in late February 1964 and were married on May 30, 1966 at Roslyn, New York. Look for other slide rules from the Ted Urlich collection in the ISRM galleries.


Pickett N600-ES Log Log (1958-1962)

ISRM 11.04.09.01.X
Pickett N600-ES Log Log Duplex
Made in USA by Pickett - circa 1962
Front Scale: LL1+.01/-.01, A [ B, ST, T T, S Cos, C ] D, DI, K
Back Scale: LL2+.1/-.1, DF [ CF, Ln, L, CI, C ] D, LL3+1/-1
Gift Of Anne Keller, Longmont, Colorado.
Andrew (Andy) David Keller (1942-2010) had a long career as an ergonomist, industrial psychologist and human factors engineer, working 17 years for IBM. He served in the US Army 1966-1968 and made design and safety improvements for a personnel carrier which were adopted by the Army. Andy earned his undergraduate degree from Mankato State University and his Masters degree from the University of South Dakota. A strong community citizen, Andy served in his church and was an active leader of the local chapter of the Society of Manufacturing Engineers. Andy was a contributor of numerous slide rules to the International Slide Rule Museum which can be found in the Pickett and Post galleries.. The slide rule may be seen in his pocket as he presents earlier gifts to Mike Konshak, Curator of ISRM


Pickett N600-ES Log Log (1962-1964)

ISRM 19.12.05.03
Pickett N600-ES Log Log Duplex
Made in USA by Pickett - circa 1962
Note: Curved braces, convex lens. Triangle yellow logo
Front Scale: LL1+.01/-.01, A [ B, ST, T T, S Cos, C ] D, DI, K
Back Scale: LL2+.1/-.1, DF [ CF, Ln, L, CI, C ] D, LL3+1/-1
Gift of A, Joseph Killian (WB6CHP) of Cedarville, California.
Joe acquired this slide rule while in high school. He received his B.S. in Physics from Harvey Mudd College and did graduate work in Atmospheric Physics at Desert Research Institute with UNR. He took contract work in the San Fracisco Bay area, and designed the IMSAI 8080 microcomputer. He worked at CoSine Communications as a Hardware department manager and at Zhone Technologies as a Sr. Hardware Architect.

REF Pickett N600-ES Log Log - Buzz Aldrin Apollo 11
Pickett N600-ES Log Log Duplex - Buzz Aldrin Apollo 11
Made in USA - Flown to to the moon July 20, 1969
Front Scale: LL1+.01/-.01, A [ B, ST, T T, S Cos, C ] D, DI, K
Back Scale: LL2+.1/-.1, DF [ CF, Ln, L, CI, C ] D, LL3+1/-1
This is a scan of the actual slide rule that was taken to the moon by astronaut Buzz Aldrin on July 20, 1969. It was sold at a Heritage Auction Galleries on September 21, 2007 and brought $77,675.00 from a serious collecter. His letter of authentication is shown. The picture of the slide rule floating in a capsule, which appears to be a white N600-T, may not have been one of Apollo missions.


Pickett N600-ES Log Log with Magnifying cursor

ISRM 22.09.13.03
Pickett N600-ES Log Log with Magnifying cursor
Made in USA - Round yellow logo, curved braces
Front Scale: LL1+.01/-.01, A [ B, ST, T T, S Cos, C ] D, DI, K
Back Scale: LL2+.1/-.1, DF [ CF, Ln, L, CI, C ] D, LL3+1/-1
Gift of JoAnn Lynn of Washington D.C., Joel L. Lynn Collection.


Pickett N600-ES Log Log (1964-1975)

ISRM 12.06.24.12
Pickett N600-ES Log Log Duplex
Made in USA - Modern Pickett Logo, NOS in Retail box with manual. Hooked braces
Front Scale: LL1+.01/-.01, A [ B, ST, T T, S Cos, C ] D, DI, K
Back Scale: LL2+.1/-.1, DF [ CF, Ln, L, CI, C ] D, LL3+1/-1
Made possible by Donations from the Huang Collection.


Pickett N600-T Log Log (NOS)

ISRM 13.02.20.04B
Pickett N600-T Log Log Duplex (NOS)
Made in USA - Modern Logo, Red Inverse Scales
Front Scale: LL1+.01/-.01, A [ B, ST, T T, S Cos, C ] D, DI, K
Back Scale: LL2+.1/-.1, DF [ CF, Ln, L, CI, C ] D, LL3+1/-1
Note: This is a 'Twin Pack' set with a 10" and 6" Dual Base LogLog Slide Rules, which included an N4-T, shown below.


Pickett N600-T Log Log (all black scales)

ISRM 12.06.24.13
Pickett N600-T Log Log (all black scales)
Made in USA - Black Round Logo, stamped square braces
Front Scale (artwork #81): LL1+ , LL1-, A [ B, ST, T Cot, S Cos, C ] D, DI, K
Back Scale: LL2+, LL2-, DF [ CF, Ln, L, CI, C ] D, LL3+, LL3-
Donated by the Huang Collection.
Mr Huang, who prefers to remain anonymous, obtained a B.S. degree in Physics from Taiwan's National Tsing Hua University in 1971. His love for computation has encouraged him to build a collection of slide rules, HP and TI calculators, as well as abaci, many displayed at ISRM.


Pickett N600-T Log Log
ISRM 22.05.06.29

Dr. Jerry L. Sweet, (1939-2019) Alongside his "Jesus First" pin, this model slide rule was always in the shirt pocket of "Doc Sweet" Professor Emeritus of mechanical engineering technology at Colorado State University - Pueblo, CO (and a mentor to Michael Konshak, the curator of ISRM, who is an alumnus of CSU-Pueblo, class of 1982). Jerry taught courses in drafting, computer-aided design (CAD) and manufacturing. He was coordinator of the coop and internship program for all engineering technology students. (Cont'd on right)
Pickett N600-T Log Log Duplex
Made in USA - Modern Logo, Red Inverse Scales
Front Scale: LL1+.01/-.01, A [ B, ST, T T, S Cos, C ] D, DI, K
Back Scale: LL2+.1/-.1, DF [ CF, Ln, L, CI, C ] D, LL3+1/-1
Gift of the Theodore E. Ulrich Collection.
(Cont'd) He served with Big Red 1 in the US Army after High Scvhool. He returned to Pueblo to attend Pueblo Jr. College and received his degree in Mechanical Engineering Technology. He went on to work in industry and eventually started teaching drafting in Pueblo's colleges for the next 40 years. During that time he went on to receive his masters and doctorate degrees from Colorado State University and was honored for his development of a new way to process quinoa seeds for drought growing areas. He always considered himself a 'facilitator of learning' instead of a teacher, and could be found asking his favorite question to everyone he met: 'What do you want to be when you grow up?'. He was always ready with a suggestion or contact to help. In addition to his education career, he was a Chinchilla Ranch Supervisor, a leader in the P-CAT, the American Ag, and the Huerfano-Pinon Coalition movements, spoke before national congressional committees, was a 4-H participant and leader, developed a manufacturing process for canola, created unique educational displays for the Colorado State Fair High Tech Building and countless other projects for education and industry. Full Obituary


Pickett N600-T Log Log (Red inverse scales)

ISRM 17.08.24.05
Pickett N600-T Log Log (Red inverse scales)
Made in USA - Black Round Logo, stamped curved braces
Front Scale: LL1+, LL1-, A [ B, ST, T T, S Cos, C ] D, DI, K
Back Scale: LL2+, LL2-, DF [ CF, Ln, L, CI, C ] D, LL3+, LL3-
Dustin Morris Collection. Gift of Nancy Morris.


Pickett N600-T Log Log Speed Rule
ISRM 14.10.15.03
Pickett N600-T Log Log Speed Rule
Made in USA - Modern Logo, stamped curved braces. Red inverse scales.
Front Scale: LL1+, LL1-, A [ B, ST, T T, S Cos, C ] D, DI, K
Back Scale: LL2+, LL2-, DF [ CF, Ln, L, CI, C ] D, LL3+, LL3-
Gift Of Edward Wright, Odenton, Maryland.


REF Pickett N600-T Log Log w/ Magnifier
Pickett N600-T Log Log w/ Magnifier
Made in USA
Front Scale: LL1+.01/-.01, A [ B, ST, T T, S Cos, C ] D, DI, K
Back Scale: LL2+.1/-.1, DF [ CF, Ln, L, CI, C ] D, LL3+1/-1
Archive - Herman's SR Catalogue SRC33141


REF Pickett N606-ES Metric Converter
Pickett N606-ES Metric Converter
Made in USA
Front Scale: K, A [ B, T Cot, S Cos, CI, C ] D, L
Back Scale: English Measure to Metric Measure
LL2+/-, DF [ CF, Ln, L, CI, C ] D, LL3+/-
Archive - Not in collection


Pickett 700-T USAF Aerial Photo Type A-2
ISRM 18.04.06.74

Pickett 700 USAF Aerial Photo Type A-2
Made in USA for the USAF
Front Scale: L, A DF [ CF, CI, T, S, C ] D, DI, K
Back Scale: Ground Size Meters, Feet, Ground Speed, [Image size, Cycling Time, Focal Length] Altitude
Gift of Leroy Hausler Collection
USAF Manual 8.69Mb



Pickett N700-T USAF Aerial Photo Type A-2
ISRM 15.09.27.04

USAF Manual 8.69Mb
Pickett N700-T USAF Aerial Photo Type A-2
Made in USA for the USAF
Front Scale: L, A DF [ CF, CI, T, S, C ] D, DI, K
Back Scale: Ground Size Meters, Feet, Ground Speed, [Image size, Cycling Time, Focal Length] Altitude
Gift of Walter Shawlee, British Columbia, Canada
Walter is the owner of Sphere Research and webmaster of Slide Rule Universe. He provided this slide rule to all attendees of the IM2014 hosted by the Oughtred Society.


Pickett 800 Log Log

ISRM 14.07.02.35
Pickett 800 Log Log Duplex sn11H1641
Made in USA - Magnesium stock.- 1945-1950
Front Scale: LL1+0.01/-0.01, A [ B, ST, T Cot, S Cos, C ] D, DI, K
Back Scale: LL2+0.1/-0.1, DF [ CF, CIF, L, CI, C ] D, LL3+1.0/-1.0
Gift of Ed Millis, Dallas, Texas

Note: After the above model was produced, Pickett came
up with the "Eye-saver Yellow" and offerred both -T and
-ES models of the 800 Log Log and others.



Pickett 800-ES Log Log Synchro-Scale

ISRM 09.01.12.94
Pickett 800-ES - Log Log Synchro-Scale - 1954
Made in USA - Flat stock braces, metal bars and flat cursor lens. slotted slide.All black text.
Front Scale: LL1+0.01/-0.01, A [ B, ST, T Cot, S Cos, C ] D, DI, K
Back Scale: LL2+0.1/-0.1, DF [ CF, CIF, L, CI, C ] D, LL3+1.0/-1.0
Donated by David Hecht, Alexandria, VA


Pickett N800-ES Log Log Synchro-Scale

ISRM 18.09.04.01
Pickett N800-ES - Log Log Speed Rule - 1959
Made in USA - Square braces, Nylon cursor bars with flat cursor lens. slotted slide. All black text.
Front Scale: LL1+0.01/-0.01, A [ B, ST, T Cot, S Cos, C ] D, DI, K
Back Scale: LL2+0.1/-0.1, DF [ CF, CIF, L, CI, C ] D, LL3+1.0/-1.0
Gift of John Kachold, of Great Falls, Virginia, who bought during high school in 1959. Halfway through college he switched majors and never used it again.


Pickett 800-ES Log Log

ISRM 17.08.24.14

Pickett 800-ES - Log Log 1960
Made in USA - Alumionum stock, square braces, flat lens, round black logo, red and black text
Front Scale: LL1+0.01/-0.01, K, A [ B, S Cos, ST, T Cot, CI, C ] D, DI, K
Back Scale: LL2+0.1/-0.1, DF [ CF, CIF, L, CI, C ] D, LL3+1.0/-1.0
Original Owner: Dustin E. Morris, Tempe, Arizona
Gifted by his wife, Nancy Morris, of Tempe, Arizona. who gifted the Dustin Morris Collection to ISRM.
Dustin E. Morris (1939-2017) Dustin, shown in this photo, holding his father's slide rule next to a Navy ship model. His father was a Naval engineer, so he started out young using a slide rule. He enlisted in the Coast Guard after high school where he started his career in electronics. Dusty worked for Motorola in the Phoenix area for 33 years. He went to ASU in the evenings until he earned his engineering degree. Dusty was a ham radio operator W7ITM who enjoyed building his own equipment. He was an active member of the Motorola Amateur Radio Club of Arizona (MARCA) He presented "Home Brew SWR Bridge" during his last year at age 78. Of the mmany slide rules donated to ISRM, by his wife, Nancy, this is one he used quite often in his Amatuer radio hobby. You can see his other personal slide rule, A Hemmi 256 Radio Communications, and others from his collection in the ISRM galleries.


Pickett 800-ES Log Log

ISRM 08.11.20.02

Pickett 800-ES - Log Log 1959
Made in USA - Alumionum stock, square braces, flat lens, round black logo
Front Scale: LL1+0.01/-0.01, K, A [ B, S Cos, ST, T Cot, CI, C ] D, DI, K
Back Scale: LL2+0.1/-0.1, DF [ CF, CIF, L, CI, C ] D, LL3+1.0/-1.0
Contributed by Shell Thuet in 2007 (See Webpage). Professional Motorcycle race tuner. Shell Thuet was inducted in the American Motorcycle Hall of Fame in 2001. The Nomination Letter written by Mike Konshak, one of his past racers, who is also the curator of the Slide Rule Museum and also the author of Shell Thuet's Biography. Shell built and tuned winning Indian Scouts, Enfield's and Yamahas. See also his motorcycle grease laden Aristo 0970
The following pictures (left to right) are from 1946, 1953, 1963 and 1975. Shell Thuet passed away in Victorville July 8, 2011 at age 98.


Pickett 800-ES Log Log Speed Rule

ISRM 18.04.06.96

Pickett 800-ES Log Log Speed Rule 1960
Made in USA, Round Black logo, Curved braces, Narrow, Flat grooved lens.
Front Scale: LL1+0.01/-0.01, K, A [ B, S Cos, ST, T Cot, CI, C ] D, DI, K
Back Scale: LL2+0.1/-0.1, DF [ CF, CIF, L, CI, C ] D, LL3+1.0/-1.0
Gift of Leroy G. Hausler Collection.

Need photo
Leroy G. Hausler's Personal Slide Rule. His name is written on the inside of the sleeve flap. Leroy was a retired pharmacist, a slide rule collector and member of the Oughtred Society from 2006 until 2016. Over 150 specimens were gifted to ISRM by his wife, Mary Lynn Hausler of Lakewood, Colorado


Pickett N800-ES Log Log Speed Rule

ISRM 17.08.24.18

Pickett N800-ES Log Log Speed Rule 1964
Made in USA, Modern logo, Curved braces, convex lens.
Front Scale: LL1+0.01/-0.01, K, A [ B, S Cos, ST, T Cot, CI, C ] D, DI, K
Back Scale: LL2+0.1/-0.1, DF [ CF, CIF, L, CI, C ] D, LL3+1.0/-1.0
Gift of Nancy Morris. Dustin E. Morris Collection.


Pickett 800-T Log Log

ISRM 16.06.02.01
Pickett 800-T Log Log Duplex
Made in USA - 0.150in thick Magnesium stock.- 1953
Front Scale [Artwork 72]
LL1+0.01/-0.01, A [ B, ST, T Cot, S Cos, C ] D, DI, K
Back Scale [Artwork 73]
LL2+0.1/-0.1, DF [ CF, CIF, L, CI, C ] D, LL3+1.0/-1.0
Gift of Bob Schwartz of Temple, Texas


Pickett 800-T Log Log Synchro-Scale

ISRM 21.10.04.03
Pickett 800-T - Log Log Synchro-Scale - 1958
Made in USA - First 0.100in thick Aluminum stock, model (thinner, magnesium models were 0.150 in thick) Stainless braces and cursor block (no serial number).Round black logo.
Front Scale (Artwork 103): LL1+0.01/-0.01, A [ B, ST, T Cot, S Cos, C ] D, DI, K
Back Scale (Artwork 102): LL2+0.1/-0.1, DF [ CF, CIF, L, CI, C ] D, LL3+1.0/-1.0
Gift of R. Kelps of Niles, MI


Pickett 800-T Log Log Synchro-Scale

S566
Pickett 800-T - Log Log Synchro-Scale - 1958
Made in USA - Aluminum stock, Die cast braces and cursor.
Front Scale(Artwork 106): LL1+0.01/-0.01, A [ B, ST, T Cot, S Cos, C ] D, DI, K
Back Scale(Artwork 105): LL2+0.1/-0.1, DF [ CF, CIF, L, CI, C ] D, LL3+1.0/-1.0


Pickett 800-T Log Log Synchro-Scale

ISRM
Pickett 800-T - Log Log Synchro-Scale - 1958
Made in USA - Aluminum stock, Die cast braces and cursor.
Front Scale: LL1+0.01/-0.01, A [ B, ST, T Cot, S Cos, C ] D, DI, K
Back Scale: LL2+0.1/-0.1, DF [ CF, CIF, L, CI, C ] D, LL3+1.0/-1.0
Donated by David Hecht, Alexandria, VA


ISRM Pickett 800-T Log Log Synchro-Scale
Pickett 800-T - Log Log Synchro-Scale - 1957
Made in USA - Stamped Stator braces, metal bars and flat cursor lens.
Front Scale: LL1+0.01/-0.01, A [ B, ST, T Cot, S Cos, C ] D, DI, K
Back Scale: LL2+0.1/-0.1, DF [ CF, CIF, L, CI, C ] D, LL3+1.0/-1.0
Donated by David Hecht, Alexandria, VA


Pickett 800-T Log Log (Red/Black Text)

ISRM 15.02.27.02

Pickett 800-T - Log Log Duplex - 1959 (Red/Black Text)
Made in USA - Round Black Logo, Nylon Cursor, Stamped Square Aluminum braces
Front Scale: LL1+0.01/-0.01, A [ B, ST, T 0., Cot <10.0, S, Cos, C ] D, DI, K
Back Scale: LL2+0.1/-0.1, DF [ CF, CIF, L, CI, C ] D, LL3+1.0/-1.0
Original owner and gifted by David Barnishim, Columbus, Ohio

David writes "When I was a student at Indiana State University in Indiana, Pennsylvania, majoring in Math and Physics from 1957-1961, I came across some poker players. The games were zero-sum, some of us lost and some of us won. It was a lot of fun. One guy put up his slide rules as a bet - I called - and won. I've been carrying these slide rules with me since 1960. Its time to give them to you, so here they are".


Pickett N800-T Log Log Speed Rule

ISRM 09.10.21.04
Pickett N800-T - Log Log Duplex - 1962
Made in USA - Nylon Cursor, Contoured Aluminum braces
Front Scale: LL1+0.01/-0.01, A [ B, ST, T 0., Cot <10.0, S, Cos, C ] D, DI, K
Back Scale: LL2+0.1/-0.1, DF [ CF, CIF, L, CI, C ] D, LL3+1.0/-1.0
Donated by Marten C. Jensen.
Marty used while at GE Defense Systems in Syracuse, NY and used along with his Picket 160-T pocket rule. It replaced his older Pickett N4-T that he used at New Mexico State University. He graduated with an Electrical Engineering degree in 1958. Note his initials stamped in the right brace.


Pickett N803-ES Log Log Speed Rule Dual Base 1959

ISRM 20.08.15.04
Pickett N803-ES Log Log Speed Rule Dual Base 1959
Made in USA. Round Triangle logo, Square braces, grooved flat lens.
Note: All black text. Inverse scales identified with Less-than symbol <
Front Scale: #1, #2, K, A [ B, S Cos, ST, T Cot, CI, C ] D, DI, DFM
Back Scale: LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0
Gift Of Robert Carlisle Collection.


Pickett N803-ES Log Log Speed Rule Dual Base 1962

ISRM 14.07.02.68
Pickett N803-ES - Log Log Speed Rule Dual Base 1962
Made in USA. Round Triangle logo, Square braces, grooved flat lens.
Front Scale: #1,   #2, K, A [ B, S Cos, ST, T Cot, CI, C ] D, DI, DFM
Back Scale: LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0
Gift Of Ed Millis, Dallas, Texas


Pickett N803-ES Log Log Speed Rule Dual Base (1962)

ISRM 18.04.06.96
Pickett N803-ES - Log Log Speed Rule Dual Base (1962)
Made in USA. Triangle logo logo, curved braces, grooved flat lens.
Front Scale: #1,   #2, K, A [ B, S Cos, ST, T Cot, CI, C ] D, DI, DFM
Back Scale: LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0
Original owner: Noel Evans "Space and Science Ages" on inside of sleeve flap.
Gift Of Leroy G. Hausler Collection
803 Supplement to Log Log Manual - 1.48Mb


Pickett N803-ES Log Log Speed Rule Dual Base

ISRM 09.01.12.116
Pickett N803-ES - Log Log Speed Rule Dual Base 1960-75
Made in USA. Modern logo, curved braces, grooved convex lens.
Front Scale: #1,   #2, K, A [ B, S Cos, ST, T Cot, CI, C ] D, DI, DFM
Back Scale: LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0
Donated by David Hecht, Alexandria, VA
803 Supplement to Log Log Manual - 1.48Mb


Pickett N803-ES Log Log Speed Rule Dual Base

ISRM 17.09.15.04
Pickett N803-ES Log Log Speed Rule Dual Base c1967
Made in USA. Round Black logo, Curved braces, convex lens.
Front Scale: #1,   #2, K, A [ B, S Cos, ST, T Cot, CI, C ] D, DI, DFM
Back Scale: LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0
Gift Of Polly Hattemer, Redondo Beach, California

800, 600, 300, N3, N4 Log Log Dual Base Manual; 803 Supplement to Log Log Manual


Pickett 803-T Log Log Speed Rule Dual Base 1959

ISRM 20.01.03.01
Pickett 803-T- Log Log Speed Rule Dual Base 1959
Made in USA. Round Triangle logo, Square braces, grooved flat lens.
Note: All black text. Inverse scales identified with Less-than symbol <
Front Scale: #1, #2, K, A [ B, S Cos, ST, T Cot, CI, C ] D, DI, DFM
Back Scale: LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0
Gift Of Rachel Katzler of Starkville, Mississippi.


REF Pickett N803-T Log Log Speed Rule Dual Base (1960)

REF
Pickett N803-T - Log Log Speed Rule Dual Base 1960
Made in USA. Triangle logo, curved braces, grooved flat lens.
Front Scale: #1,   #2, K, A [ B, S Cos, ST, T Cot, CI, C ] D, DI, DFM
Back Scale: LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0
Archive - Contributed by Roger Miller, Castle Rock, CO., VP and Energy Engineer

Original 803 (also 800, 600, 300, N3) Log Log Manual (with 803 Supplement) - 20.2Mb


Pickett N803-T Log Log Speed Rule Dual Base

ISRM 18.12.30.06
Pickett N803-T - Log Log Speed Rule Dual Base 1960-75
Made in USA
Front Scale: #1,   #2, K, A [ B, S Cos, ST, T Cot, CI, C ] D, DI, DFM
Back Scale: LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0
Donated by Peter D. Eickenberry Sr. of Olympia, Washington
803 Supplement to Log Log Manual - 1.48Mb


REF Pickett N808-T Marine Fuels
Pickett N808-T Marine Fuels c1959
Made in USA by Pickett for Standard Oil
Front Scale: API Gravity, Specific Gravity, Barrels per Long Ton [ CI, C ] D, K, L
Back Scale: Engler, SSU, SSF, [ Intermediate Bunker Fuel] Fuel Temperature F°, C°
Archive - Duncan MacKeller Collection
Note: This is the only 8 inch slide rule that Pickett ever made


ISRM Pickett N901-ES Simplex
Pickett N901-ES Simplex\
Made in USA - Early Narrow plastic cursor, Square Braces Black Round Logo
Front Scale (Artwork #65): K, A [ B, CI, C ] D, L
Back Scale: Instructions [ Equivalents ] Instructions
Note: black sewed naugahyde sleeve.


ISRM Pickett N901-ES Simplex
Pickett N901-ES Simplex\
Made in USA - Wide plastic cursor, Square Braces Black Round Logo
Front Scale (Artwork #65): K, A [ B, CI, C ] D, L
Back Scale: Instructions [ Equivalents ] Instructions
Note: black sewed naugahyde sleeve.


Pickett N901-T Simplex (Mislabeled -ES stock)

ISRM 20.08.15.13
Pickett N901-T Simplex (Mislabeled -ES stock)
Made in USA - Wide plastic cursor, Square Braces Black Round Logo
Front Scale (Artwork #65): K, A [ B, CI, C ] D, L
Back Scale (note special variation in artwork): Equivalents[ Equivalents ] Equivalents
Marking: Numbered from a classroom set.
: black sewed naugahyde sleeve. Gift of Robert Carlisle Collection..


Pickett N901-T Simplex c1958

ISRM 15.11.03.03


Pickett N901-T Simplex
Made in USA - Early Narrow plastic cursor, flat lens, stamped square braces, Black Round Logo
Front Scale (Artwork #65): K, A [ B, CI, C ] D, L
Instructions [ Equivalents ] Instructions
Original Owner Chuck Rash, label on black sewed naugahyde sleeve.
Donated By Randy Rash in memory of his father Charles (Chuck) Elmer Rash (1918-1989) of Portland, Oregon.
Randy writes about his father: "I have all his flight logs and am still staggered by all the different aircraft he flew during his career. The majority involve seaplanes during World War 2 used for submarine hunting and later after the Korean War he flew helicopters. Also with the express purpose of sub hunting. He started in the Navy as a rear gunner/radio man in the Douglas Dauntless and similar aircraft. He was what I believe was considered a "Mustang Officer". He started out as enlisted and later gained officer status after becoming a pilot. One interesting thing was he spent some time teaching Air Force pilots to land on aircraft carriers using the North American T-28 Trojan."
There are two other slide rules used by Chuck Rash, and more pictures, shown in the Pickett, Circular and Aerospace galleries.


Pickett N901-T Simplex

ISRM 17.08.24.15

Pickett N901-T Simplex
Made in USA - Wide Nylon cursor, Curved Braces, Black Round Logo
Front Scale (Artwork #65): K, A [ B, CI, C ] D, L
Back Scale: Instructions [ Equivalents ] Instructions
Note: black sewed naugahyde sleeve.
Dustin E. Morris Collection.Gift Of Nancy Morris, Tempe, Arizona


Pickett 902 Simplex Trig c1949 Magnesium

17.12.17.20

This was one of James J. Pennell's personal slide rules used in his career. His family writes: "Our father used and collected slide rules consistently throughout his life acquiring them from friends and at yard sales. It is an honor to donate his collection to the International Slide Rule Museum." Look for more specimens of his collection in the other ISRM galleries.
Pickett 902 Simplex Trig c1949 Magnesium Stock sn3A02974
Made in USA - Note early scale set, no CI scale, triangle logo. Grooved stock
Front Scale [#40 Artwork]
K, A [ B, S Cos, T Cot,  C ] D, L
Back Scale[#41 Artwork]:
Instructions [ Instructions ] Calculating decimal point aid
Original owner: James J. Pennell. Gifted by his daughter, Brenda Barnes, and son, Barry Pennell of Apex, North Carolina.
Jim was born in Wilkes County North Carolina, on June 9, 1927. His parents were Charles and Maggie Ellis Pennell, and he was the youngest of three sons. He was drafted twice serving in the Navy for eleven months during WWII and in the Air Force during the Korean War. While in the Air Force he was stationed in Japan for two years and developed a deep appreciation of that country and its culture. After leaving the military he went to work for the Federal Aviation Administration as an electronics technician caring for the navigation aids at Raleigh-Durham Airport for 25 years. He was a long-time committed member of Greenwood Forest Baptist Church where he proudly served on the properties committee for many years. He was an avid bowler and enjoyed golf and working on the home in Cary he lived in for 55 years.


Pickett N902-ES Simplex Trig (version 1 scales)

ISRM 20.01.12.02
Pickett N902-ES Simplex Trig (version 1 scales)
Made in USA - Note: No CI scale Square Braces, Extended cursor blocks, Round Black Logo
Front Scale: K, A [ B, T Cot, S Cos, C ] D, L
Back Scale: Equivalents and instructions
Gift of Rachel Katzel, Starkville, Mississippi


Pickett N902-ES Simplex Trig (version 2 scales)

ISRM 16.06.02.05
Pickett N902-ES Simplex Trig (version 2 scales)
Made in USA - Note: Square Braces, Extended cursor blocks, Round Black Logo
Front Scale: K, A [ B, T Cot, S Cos, CI, C ] D, L
Back Scale: Equivalents and instructions
Gift of Bob Schwartz, temple, Schwartz


Pickett N902-ES Simplex Trig

ISRM 14.09.17.02

Pickett N902-ES Simplex Trig
Made in USA - CI scale added, Radius Braces, Black Round Logo
Front Scale (Artwork #38): K, A [ B, T Cot, S Cos, CI, C ] D, L
Back Scale (Artwork #41): Instructions [ Instructions ] Equivalents
Note: Brown sewed Naugahyde sleeve
Gift of Jeannette B. Lyon, Myrtle Beach, Florida
Jeanette Lyon bought this slide rule while in high school from 1961-1963. She received her Bachelor of Science (Biology) in 1968 from Towson State College, Baltimore, MD, and her Master of Health Science in 1973 from Johns Hopkins University School of Hygiene and Public Health in Baltimore, MD. As a profesional Sanitarian, she has worked for the Anne Arundel County Department of Health, Division of Environmental Health, Annapolis, MD; the Maryland Department of Health and Mental Hygiene, Office of Food Protection and Consumer Health Services, Baltimore, MD; and currently, since 1996, the U. S. Food and Drug Administration at the Center for Food Safety and Applied Nutrition in Washington, DC and College Park, MD. Her late husband, Jesse (Bud) Lyon's slide rule is in the K&E Standard gallery.


Pickett N902-ES Simplex Trig

ISRM 09.10.23.01
Pickett N902-ES Simplex Trig
Made in USA - With CI scale, Radius Braces, Modern Logo
Front Scale: K, A [ B, T Cot, S Cos, CI, C ] D, L
Back Scale: Equivalents and instructions
Gift of R. Rosty, Saddlebrook, New Jersy


Pickett 902-T Simplex Trig (1957)

ISRM 12.12.03.49
Pickett 902-T Simplex Trig - 1957
Made in USA by Pickett
Note: Diecast end braces and cursor bars. This was a short lived design.
Front Scale (artwork: #39): K, A [ B, T Cot, S Cos, CI, C ] D, L
Back (artwork: #41): Instructions on how to use and read slide rule.


Pickett N902-T Simplex Trig (1959)

ISRM 10.12.12.07

     
Related Ephemera enclosed in retail box
Pickett N902-T Simplex Trig - 1959
Made in USA
Front Scale: K, A [ B, T Cot, S Cos, CI, C ] D, L
Back Scale: Equivalents and instructions
Original Owner: Herb Stark
Donated by Andrew Keller, Longmont, Colorado


Pickett N902-T Simplex Trig

ISRM 12.06.24.49
Pickett N902-T Simplex Trig - 1960
Made in USA
Note Flat lens, Extended cursor blocks, Curved braces, Round Black Logo.
Front Scale: K, A [ B, T Cot, S Cos, CI, C ] D, L
Back Scale: Equivalents and instructions
Donated by the Huang Collection.


Pickett N902-T Simplex Trig - c1962

ISRM 14.01.10.49
Pickett N902-T Simplex Trig - 1962
Made in USA
Note Convex lens, Nylon cursor blocks, Curved braces, Round Black Logo
Front Scale: K, A [ B, T Cot, S Cos, CI, C ] D, L
Back Scale: Equivalents and instructions
Gift of the Bill Wehrend Collection.


Pickett N902-T Simplex Trig

ISRM 10.12.12.05
Pickett N902-T Simplex Trig - 1964 to 1975
Made in USA - Curved Braces, Modern Logo
Front Scale: K, A [ B, T Cot, S Cos, CI, C ] D, L
Back Scale: Equivalents and instructions
Donated by Andrew Keller, Longmont, Colorado


Pickett N902-T Simplex Trig

ISRM 22.03.01.37


Pickett N902-T Simplex Trig - 1960
Made in USA by Pickett for Northeast Iinstitute of Industrial Technology
Note Flat lens, Extended cursor blocks, Curved braces, Round Black Logo.
Front Scale: K, A [ B, T Cot, S Cos, CI, C ] D, L
Back Scale: Equivalents and instructions
Donated by the Philip E. Stanley Collection.
Northeast Institute Of Industrial Technology was a non-profit private institution founded by John Hoffman and George Galvin. and was located at 41 Phillips St in Boston, Suffolk County, MA. Total enrollment was approximately 200. The program lasted for less than one year. Popular programs include Environmental Control Technologies, Electrical & Electronic Engineering Tech and Heating. Northeast Institute started near Northeastern University in 1942 and moved to Beacon Hill in 1947. At its height, in the 1980s, the school enrolled 400 students in day and evening classes. The school's daytime diploma program cost $7,400 and the evening certificate program cost $4,900. Competition from state-supported technical schools and the school's inconvenient location in a densely packed neighborhood made it unattractive to students, It closed its doors and sold its building in 1998.


Pickett 903

S218
Pickett 903
Made in USA
Front Scale: K, A [ B, T Cot, S Cos, CI, C ] D, L
Back Scale: Equivalents and instructions
Original Owner: Ron Clifton, used this at the Colorado school of Mines in Golden, CO.


Pickett N903-ES Trig and Conversion c1959-1960

ISRM 14.01.10.47
Pickett N903-ES Trig and Conversion
Made in USA
Note: Curved braces, Round Black Logo.
Front Scale: K, A, DF [ CF, T Cot, S Cos, CI, C ] D, L
Back Scale: Equivalents and instructions
Gift of the Bill Wehrend Collection.


Pickett 903-T Trig with Units Conversion c1953

ISRM 14.07.02.27.X
Pickett 903-T Trig with Units Conversion
Made in USA
Note: Grooved stock, Rounded braces, Triangle Logo, flat lens, Machine metal cursor blocks.
Front Scale: K, A, DF [ CF, T Cot, S Cos, CI, C ] D, L
Back Scale: Unit Conversions. Set indexes on desired measure, then read conversion on C scale on other side of stock.
Note: this scale configuration only appeared on this metal bar version. It was not on the first 903, nor on the 903-ES/-T that used the newer all-plastic lens.
Gift of the Ed Millis Collection.


Pickett 903-T Trig and Conversion (1962)

ISRM 18.04.06.99
Pickett 903-T Trig and Conversion (1962)
Made in USA
Note: Square stamped braces, Round Black Logo, Grooved Convex lens, Nylon cursor blocks.
Note: Tinted Cursor lens
Front Scale (Artwork 47): K, A, DF [ CF, T Cot, S Cos, CI, C ] D, L
Back Scale: Equivalents and instructions, Version 2 per circular 47
Gift Of Leroy G. Hausler Collection.


Pickett N904-ES Trig and Decimal Keeper

ISRM 18.01.04.02

Note: The Decimal Keeper scale was invented by Lawrence J. Kamm, "Automatic Decimal Point Slide Rule" U.S.Patent #2,893,630, July 7, 1958. Kamm received a bachelor's degree from Columbia University in 1941, and a Masters from Brooklyn Polytechnic in 1946. He held Professional Engineer Licenses from New York, Maryland and California. He was formerly the President of Mobot Corp.
Pickett N904-ES Trig and Decimal Keeper Speed Rule - 1959
Made in USA. Square braces, flat lens, round black logo.
Front Scale: K, A [ B, T Cot, S Cos, CI, C ] D, L
Back Scale: K*, A* [ B*, T*, S*, CI*, C* ] D*, L*
Gift Of Philip E. Stanley Collection.



Pickett N904-ES Trig and Decimal Keeper

ISRM 18.01.04.02

Note: The Decimal Keeper scale was invented by Lawrence J. Kamm, "Automatic Decimal Point Slide Rule" U.S.Patent #2,893,630, July 7, 1958. Kamm received a bachelor's degree from Columbia University in 1941, and a Masters from Brooklyn Polytechnic in 1946. He held Professional Engineer Licenses from New York, Maryland and California. He was formerly the President of Mobot Corp.
Pickett N904-ES Trig and Decimal Keeper Speed Rule - 1960-62
Made in USA
Front Scale: K, A [ B, T Cot, S Cos, CI, C ] D, L
Back Scale: K*, A* [ B*, T*, S*, CI*, C* ] D*, L*
Gift of Dorinda J. Wong of Pleasanton, California..
Dorinda used this slide rule in undergrad chemistry, physics, math classes at UC Berkley in the early '70s.



Pickett N904-T Trig and Decimal Keeper Speed Rule

ISRM 14.09.08.01
Pickett N904-T Trig and Decimal Keeper Speed Rule - 1960-62
Made in USA
Front Scale: K, A [ B, T Cot, S Cos, CI, C ] D, L
Back Scale: K*, A* [ B*, T*, S*, CI*, C* ] D*, L*
Gift Of Edward T. Wright, Odenton, Maryland.


Pickett 905-ES "A" Texas Speed Rule
ISRM 21.05.23.01
Pickett 905-ES "A" Texas Speed Rule 1959
Made in USA
Front Scale (Note: Two K scales): K, A [ B, K, CI, C ] D, L
Back Scale: [ T Cot, ST, S Cos, C ] D
Note: Every year until about 1980 a slide rule competition was held in the State of Texas (US). The contestants had to complete a series of calculations in 30 minutes. As the competition was timed there was a premium on speed but the marking system also required high accuracy. If the answer was accurate to three place of decimals, three points were awarded but if the answer was off by more than 2 places in the third significant figure no marks were awarded. Whilst other rules were allowed, and were used, the Pickett "Texas speed rule" was most popular. Ref: Ron Manley


S474 Pickett N909-ES Metric Conversion Simplex Trig
Pickett N909-ES Metric Conversion Simplex Trig
Made in USA
Front Scale: K, A [ B, T Cot, S Cos, CI, C ] D, L
Back Scale: Fahrenheit, A [ Univ Conversion Scales ] B, Celsius, Decimals
Retail Display, courtesy of Gary Rourke collection. Gary and his family worked in the Pickett sales department.


Pickett 931-ES Capitol Radio Engineering Institute

ISRM 11.12.23.01
Pickett 931-ES Capitol Radio Engineering Institute - 1959
Made in USA by Pickett for CREI. Square Braces.
Front Scale (artwork #119): K, A [B, CI, C] D, L, Ln
Back Scale (artwork #120): LL2, LL1 [ S Cos, ST, T Cot, C] D, LL3
Sleeve: Brown sewn nuagahyde
Donated by Dan Marcotte, Rye, New Hampshire
Dan Marcotte used this slide rule while being a part of the Capitol Radio Engineering Institute Nucleur Engineering program. His career started in R&D at EG&G, a prime contractor in conducting and recording nucleur explosions. He later became active in real estate, followed by a stint as an industrial sales representitive for a farm and industrial wholesaler covering the U.S. northeast. Dan is now retired with his wife of 51 years (as of 2011).


Pickett 931-ES Capitol Radio Engineering Institute

ISRM 15.04.17.01

Pickett 931-ES Capitol Radio Engineering Institute - 1959
Made in USA by Pickett for CREI
Front Scale (artwork #119): K, A [B, CI, C] D, L, Ln
Back Scale (artwork #120): LL2, LL1 [ S Cos, ST, T Cot, C] D, LL3
Sleeve: Brown sewn nuagahyde
Gifted by Jay Wright of Washington D.C.
Jay Kelly Wright, who owned this slide rule (2 of 2), was born in Washington D.C. He used them while a student at Washington-Lee High School, Arlington, Virginia from 1959-1961. After graduation from Dartmouth College in 1965, he served in the United States Navy from 1965-1969. He attended Harvard Law School and is a lawyer in the Washington D.C. area.


Pickett 931-ES Capitol Radio Engineering Institute

ISRM 13.00.00.73
Pickett 931-ES Capitol Radio Engineering Institute - 1960-62
Made in USA by Pickett for CREI. Curved Braces, Round black logo, Flat lens..
Front Scale: L, Ln, A [B, CI, C] D, 2π, K
Back Scale: LL2, LL1 [ S Cos, ST, T Cot, C] D, LL3
Note: change in scale layout on front scale from the earlier 1959 model


Pickett 1000 Ortho-Phase Duplex

ISRM 12.06.18.05
Pickett 1000 Ortho-Phase Duplex snA048532
Made in USA by Pickett & Eckel - Magnesium Stock, 1948 Triangle Logo with Trademark, Black dot CI Scale)
Front Scale (artwork #J-10): A [ B, T Cot, ST, S Cos] D, K
Back Scale (artwork #K-10): DF [ CF, CIF, CI, C ] D, L
Note: felt sleeve. In retail box.
Donated by Daniel Swerdlow, Bethesda, Maryland
Copyright 1948 Manual 8.87Mb


Pickett & Eckel 1000 Ortho-Phase Duplex snA142022 (1949)

ISRM 18.09.17.08

Pickett & Eckel 1000 Ortho-Phase Duplex snA142022 c1948
Made in USA - Magnesium stock, 1949-1950 triangle logo with "Trade Mark" on sides, rounded stamped metal braces, machined cursor blocks
Note the CI scale with the numbers circled.
Front Scale (Artwork 26): A [ B, T Cot , ST, S Cos] D, K
Back Scale(Artwork 27): DF [ CF, CIF, CI, C ] D, L
Original owner: Howard W. Brandyberry of Indiana.
Gift Of Rev. Jim Brandyberry of Indianapolis, Indiana. Belonged To father.
Howard W. Brandyberry (1913-1971) After serving in the United States Army, Howard received his B.S.(c1940) and Master's degrees from Indiana University (c1945), where he met and married his wife O. Pauline Brandyberry (1916-2006). They both became teachers in Indiana schools. Howard taught Phys. Ed, History and Health, and coached basketball at Monroe High School, then later at Huntertown (c1948) and New Castle High schools. His coaching stats over 10 years had a record of 159 wins vs. 32 losses. His son, Jim, was named for his best player, Jim Buchanan of Huntertown, who was drafted by the Boston Celtics in 1952. He resided in Indiana all of his life.


Pickett & Eckel 1000 Ortho-Phase Duplex sn D400378

ISRM 18.09.17.08
Pickett & Eckel 1000 Ortho-Phase Duplex sn D400378
Made in USA - Magnesium stock, triangle logo, rounded stamped metal braces, machined cursor blocks
Note the CI scale with the numbers circled
Front Scale(Artwork 26): A [ B, T Cot , ST, S Cos] D, K
Back Scale(Artwork 27): DF [ CF, CIF, CI, C ] D, L
Donated by Donald S. Bachelor Collection


Pickett & Eckel 1000 Ortho-Phase Duplex sn 2A12197

ISRM 18.04.06.44
Pickett & Eckel 1000 Ortho-Phase Duplex sn 2A12197
Made in USA - Magnesium stock, triangle logo, rounded stamped metal braces, machined cursor blocks
Front Scale(Artwork 271): A [ B, T Cot , ST, S Cos] D, K
Back Scale(Artwork 281): DF [ CF, CIF, CI, C ] D, L
Gift Of Leroy G. Hausler Collection


Pickett & Eckel 1000 Ortho-Phase Duplex

ISRM 12.06.18.05
Pickett & Eckel 1000 Ortho-Phase Duplex
Made in USA - Note the modern CI Scale: Front Scale (artwork #26): A [ B, T Cot , ST, S Cos] D, K
Back Scale (Artwork #271): DF [ CF, CIF, CI, C ] D, L


Pickett Model 1006 Trig (c1949)

ISRM 09.01.12.65
Pickett Model 1006 Duplex Trig
Made in USA
Front Scale (Artwork code 80): K, A [ B, ST, T  Cot, S Cos, C ] D, DI
Back Scale: DF [ CF, CIF, CI, C ] D, L
Donated by David Hecht, Alexandria, Virginia


Pickett Model 1006 Trig

ISRM 11.10.25.02
Pickett Model 1006 Duplex Trig c1950
Made in USA
Front Scale: K, A [ B, ST, T  Cot, S Cos, C ] D, DI
Back Scale: DF [ CF, CIF, CI, C ] D, L
Donated by Russell Anthony, Lafayette, Colorado.
This slide rule was used by his father, Ward Anthony, who was an aerospace engineer at Martin Marietta in Littleton, Colorado.


Pickett Model 1006 Trig (1957)

ISRM 22.07.06.63
Pickett Model 1006 Duplex Trig 1967
Made in USA - Square braces, Flat lens,.Cast aluminum bars, Triangle logo.
Front Scale: K, A [ B, ST, T Cot, S Cos, C ] D, DI
Back Scale (added Ln): Ln, DF [ CF, CIF, CI, C ] D, L
Gift of Cindy Tate, Bozeman, Montana. Victor. B. Tate Collection.


Pickett Model N1006-ES Trig (1959)

ISRM 22.07.06.65
Pickett Model N1006-ES Duplex Trig 1959
Made in USA - Curved braces, Grooved flat lens, nylon bars,.Round Black logo.
Front Scale: K, A [ B, ST, T Cot, S Cos, C ] D, DI
Back Scale (added Ln): Ln, DF [ CF, CIF, CI, C ] D, L
Gift of Cindy Tate, Bozeman, Montana. Victor. B. Tate Collection.


Pickett Model N1006-ES Trig (1962)

ISRM 22.07.06.64
Pickett Model N1006-ES Duplex Trig 1962
Made in USA - Curved braces, convex lens, nylon bars,.Round Black logo.
Front Scale: K, A [ B, ST, T Cot, S Cos, C ] D, DI
Back Scale (added Ln): Ln, DF [ CF, CIF, CI, C ] D, L
Gift of Cindy Tate, Bozeman, Montana. Victor. B. Tate Collection.


Pickett Model N1006-T Trig

ISRM 20.04.01.060
Pickett Model N1006-T Duplex Trig
Made in USA - Curved braces,Convex lens.Round Black logo.
Front Scale: K, A [ B, ST, T Cot, S Cos, C ] D, DI
Back Scale (added Ln): Ln, DF [ CF, CIF, CI, C ] D, L
Gift of the Phillip E. Stanley Collection.


Pickett & Eckel 1010 Duplex c1948

ISRM 14.01.10.42


Box with Dieterich-Post Co. distributor label.
Pickett & Eckel 1010 Duplex sn2C40913
Serial Number 2C40913 stamped on cursor block.
Made in USA by Pickett & A.F. Eckel, Inc. for Dieterich-Post Co. (no rebranding)
Front Scale (Artwork #74): K, A [ B, ST, T Cot, S Cos, C ] D, DI
Back Scale (Artwork #271): DF [ CF, CIF, CI, C ] D, L
Note features: Metal Bar Cursor, Rounded Braces, Triangle Logo
Gift of Bill Wehrend collection, Palo Alto, California.

Model 1000 Slide Rule Manual with CI and DI scale supplement. (5.80MB PDF)


Pickett 1010 Duplex c1948

ISRM 12.11.22.03
Pickett 1010 Duplex
Made in USA by Pickett and Eckel. Serial Number 3004548 (on cursor block)
Note features: Magnesium stock, grooved on top and bottom. Metal Bar Cursor, Rounded Braces, Triangle Logo
Front Scale (Artwork #74): K, A [ B, ST, T Cot, S Cos, C ] D, DI
Back Scale (Artwork #271): DF [ CF, CIF, CI, C ] D, L
Donated from the collection of Robert L. Allison of Ballard, Washington.


Pickett 1010-ES Duplex - Transitional Model c1953

ISRM 14.01.10.48

Pickett 1010-ES Duplex - Transitional Model
Made in USA by Pickett and Eckel in Alhambra by Cal-Pan Co. using Pickette artwork. This is an aluminum stock transitional model which coincides with design changes to the slide rules, as well as the leather sleeve, with the move from Chicago, Illinois to Alhambra, California. It is the first time the -ES or -T appears as part of the model number artwork.
Note:Round black logo. First appearance of Aluminum stock with tension spring on upper stock (to keep slide falling out). Rounded braces as was used with magnesium stocks, extended nylon cursor bars, grooved flat lens. All part of a cost reduction. The radii on the upper and lower stock corners were soon discontinued in favor of square corners, another cost reduction in machining time.
Front Scale (Artwork #74): K, A [ B, ST, T Cot, S Cos, C ] D, DI
Back Scale (Artwork #271): DF [ CF, CIF, CI, C ] D, L
Note: The sleeve shown is a very rare transitional design, and is the first attempt at Pickett making leather sleeves, after the tacky rubber type which was introduced with other magnesium models in 1948. The rubber model retained moisture and added to the corrosion of the magnesium stocks. Notice the 'D' ring used for leather belt loops, to compete with K&E and Post sleeves. In 1953-54 John Pickett formed Pacific Leather Works to make slide rule cases which had plastic inner liners.
Gift of the Bill Wehrend Collection, Palo Alto, California.


Pickett 1010-ES Trig Duplex

ISRM 11.11.21.02
Pickett 1010-ES Trig Duplex
Made in USA - Plastic Bar Cursor, Square Braces, Black Round Logo, All black Text
Front Scale (Artwork #74): K, A [ B, ST, T Cot, S Cos, C ] D, DI
Back Scale (Artwork #271): DF [ CF, CIF, CI, C ] D, L
Note: Black sewed naugahyde sleeve
Original owner: Authur Bowen, Marked on sleeve


Pickett N1010-ES Trig Duplex

ISRM 22.03.01.40
Pickett N1010-ES Trig Duplex
Made in USA - Plastic Bar Cursor, Square Braces, Black Round Logo, All black Text
Note: "N" added to model number but still has the 1010-ES scale set with no "DI" scale on back..
Front Scale (Artwork #74): K, A [ B, ST, T Cot, S Cos, C ] D, DI
Back Scale (Artwork #271): DF [ CF, CIF, CI, C ] D, L
Gift Of Philip E. Stanley Collection


Pickett N1010-ES Trig Duplex V1

ISRM 11.11.21.07
Pickett N1010-ES Trig Duplex
Made in USA - Plastic Bar Cursor, Square Braces, Black Round Logo, All black Text
Front Scale (Artwork #74): K, A [ B, ST, T Cot, S Cos, C ] D, DI
Back Scale (Artwork #272): DF [ CF, CIF, CI, C ] D, DI, L
Note: Added DI scale to back. Black sewed naugahyde sleeve


Pickett N1010-ES Trig Duplex V2

ISRM 13.00.00.27
Pickett N1010-ES Trig Duplex
Made in USA - Plastic Bar Cursor, Square Braces, Black Round Logo, RED Inverse Scales
Note: Added DI scale to back. Front Scale (Artwork #74): K, A [ B, ST, T Cot, S Cos, S, C ] D, DI
Back Scale (Artwork #272): L, DF [ CF, CIF, CI, C ] D, DI

Black sewed naugahyde sleeve


Pickett N1010-ES Trig Duplex

ISRM 10.05.10.01

Pickett N1010-ES Trig Duplex
Made in USA - Wide Plastic Cursor, Curved Braces, Round Black Logo, Red and Black Text
Front Scale: K, A [ B, ST, T Cot, S Cos, S, C ] D, DI
Back Scale: L, DF [ CF, CIF, CI, C ] D, DI
Donated by Al White, Colorado
Al used this while working at Bendix Corp in Teterboro, New Jersey in their drafting department. 1964-1972. It still has the original retail box with manual and warranty.


Pickett N1010-ES PowerTrig with Retail Box

ISRM 12.06.24.18
Pickett N1010-ES PowerTrig with Retail Box and Gaurentee.
Made in USA - Wide Plastic Cursor, Curved Braces, Modern Logo, Red and Black Text
Front Scale: K, A [ B, ST, T, S, C ] D, DI
Back Scale: L, DF [ CF, CIF, CI, C ] D, DI
Note:with retail box. Sleeve is brown suede leather with plastic insert.
Donated by the Huang Collection.


Pickett N1010SL-ES Super Power Trig NIB

ISRM 18.04.06.63

Pickett N1010SL-ES Super Power Trig
Made in USA - 22 scales
Front Scale: #1,   #2, A [ B, ST, T Cot, S Cos, C ] D, DI, K
Back Scale: L, DF [ CF, CIF, CI, C ] D, DI, Ln


Pickett & Eckel 1010-T Duplex c1954

ISRM 15.02.18.01

Note: Price marked at $10.40 (Approximately $100 in todays money).
Pickett & Eckel 1010-T Duplex
Front Scale (Artwork #74): K, A [ B, ST, T Cot, S Cos, C ] D, DI
Back Scale (Artwork #271): DF [ CF, CIF, CI, C ] D, L
Note features: Metal Bar Cursor, Rounded Braces, Triangle Logo
Gift of Randy Shrimplin, Okeechobee, Florida.
Randy writes: "This belonged to my dad and I used it in school as well. I also have a Pickett Dial rule 101c in perfect shape in the case with paperwork but no box."

Model 1010 Slide Rule Manual (9.06MB PDF) and Pocket Catalog(9.06MB PDF)


Pickett 1010-T Duplex c1958 (metal bar cursor)

ISRM 19.05.04.07
Pickett 1010-T Duplex
Made in USA - Note: metal bar cursor, rounded braces. Round black logo.
Front Scale: K, A [ B, ST, T  Cot, S Cos, C ] D, DI
Back Scale: DF [ CF, CIF, CI, C ] D, L
Gift of Terry Whitsel of Loveland, Colorado.



Pickett 1010-T Duplex Trig c1957 (cast metal bars)

ISRM 22.09.01.02

Pickett 1010-T Duplex Trig
Made in USA - Aluminum stock, Grooved slide, Round Black Logo, Cast metal cursor bars and cast "clamshell" end braces. This style was only produced for two years.
Front Scale (artwork #74): K, A [ B, ST, T  Cot, S Cos, C ] D, DI
Back Scale (artwork #271): DF [ CF, CIF, CI, C ] D, L
Gift Of Ronald Ropke (6-11-2042 - ) of Grosse Pointe, Michigan,
Ronald Ropke writes: "My slide rule skills were developed during the 1950s while I was a student at Cass Technical High School in Detroit and later at Lawrence Institute of Technology. An early job asa draftsman at an auto industry conveyor company made slide ruiles skills a valuable asset. During the 1960s, my service in the Air Force weather detachments in Michigan and Vietnam made slide rule use necessary, as electronic calculators were not always available."


Pickett 1010-T Duplex c1957 (cast metal bars)

ISRM 12.08.05.03


Lyle Wells with wife Antoinette, Belgium, 1946
Pickett 1010-T Duplex
Made in USA - Aluminum stock, Grooved slide, Round Black Logo, Cast metal cursor bars and cast "clamshell" end braces. This style was only produced for two years.
.
Front Scale (artwork #74): K, A [ B, ST, T  Cot, S Cos, C ] D, DI
Back Scale (artwork #271): DF [ CF, CIF, CI, C ] D, L
Donated by Lyle Wells of Henderson, Nevada who used this in his career.
Lyle Wells was born May 26, 1923. He married his wife, Antoinette, in 1946 in Belgium while he was in the Army. They were married for 65 years and have one son. Lyle was drafted on March 12, 1943 and served until 1953 spending most of his time in France, Belgium and Germany as a master sargeant in the 515 engineer outfit. After returning to the United States, Lyle was an operating engineer for over 20 years and also owned two businesses. He was a recreational pilot and remembers needing to have a slide rule in order to obain his pilot's license. Although he was only able to go to school until the 8th grade before having to earn a living. Lyle remembers that his wife, who spoke 5 languages, was always better than him with the slide rule. At 89 years of age as of 2012, Lyle rides his mountain bike an average of 10-15 miles per day and the only pills he takes are vitamins. (Biography contributed by Donna Silva of Wishing Well Glass.


Pickett N1010-T Trig Duplex

ISRM 18.04.06.97
Pickett N1010-T Trig Duplex
Made in USA - Round Black Logo, Square Braces, Grooved flat lens.
Front Scale (Artwork 74): K, A, [B, ST, T Cot, S Cos, C] D, DI
Back Scale (Artwork 271): DF [ CF, CIF, CI, C ] D, L
Gift O Leroy G. Hausler Collection.


Pickett N1010-T Trig Duplex c1959

ISRM 12.06.24.47
Pickett N1010-T Trig Duplex
Made in USA - Plastic Bar Cursor, Square Braces, Round Black Logo, Red and Black Text
Front Scale (artwork 74): K, A, [B, ST, T  Cot, S Cos, C] D, DI
Back Scale (artwork 272): L, DF [ CF, CIF, CI, C ] D, DI, L
Note: Pickett & Eckel, Inc label
Original Owner: Hauserman (marked on upper stock)
Donated by Anonymous collector and Daughter


Pickett N1010-T Trig Duplex c1964

ISRM 16.06.02.02
Pickett N1010-T Trig Duplex
Made in USA - Plastic Bar Cursor, Curved Braces, Black Round Logo, Red and Black Text
Front Scale: K, A, [B, ST, T  Cot, S Cos, C] D, DI
Back Scale: L, DF [ CF, CIF, CI, C ] D, DI
Gift Of Bob Schwartz, Temple, Texas


Pickett N1010-T Trig Duplex c1964

ISRM 21.06.10.22
Pickett N1010-T Trig Duplex
Made in USA - Plastic Bar Cursor, Curved Braces, Modern Logo, Red and Black Text
Front Scale: K, A, [B, ST, T  Cot, S Cos, C] D, DI
Back Scale: L, DF [ CF, CIF, CI, C ] D, DI
Note: Address of Pickett is now Santa Barbara, Calif.
Bob Dehn's Collection gifted by wife Fran (McGroary) Dehn of Menlo Park, California.
Robert "Bob" Dehn (1941-2000) graduated from UC Berkeley with a degree in chemistry. Following his graduation, Bob started work as a pharmaceutical chemist at Stanford Research Institute, which later became SRI International. It was there that he spent his entire professional career. It was also at SRI that he met his wife of 52 years, Fran McGroary. After receiving his MBA from Santa Clara University, Bob moved into marketing and business development for the Life Sciences Division of SRI where he continued until his retirement in 2007..Bob began collecting with his first slide rule while studying at UC Berkeley. During his career he continued to collect from colleagues, antique shows and swaps.


Pickett N1010SL-T Super Power Trig NIB

ISRM 18.04.06.64

Pickett N1010SL-T Super Power Trig
Made in USA - 22 scales
Front Scale: #1,   #2, A [ B, ST, T Cot, S Cos, C ] D, DI, K
Back Scale: L, DF [ CF, CIF, CI, C ] D, DI, Ln


Pickett 1011-ES Trig-Exponential

ISRM 21.10.25.05


Pickett 1011-ES Trig-Exponential
Made in USA - Used as a standard slide rule at R.E.T.S. Electronics Schools.
Front Scale: K, A [ B, ST, T Cot, S Cos, C ] D, DI
Back Scale: Ln, DF [ CF, CIF, CI, C ] D, DI, L
R.E.T.S., Radio Electronic Television Schools was established in Detroit, Michigan in 1935. In 1978, the school was acquired by National Education Corporation, and in 1979 it was made a part of the Technical Schools group, including the United Electronics Institute (established in 1968 in Cross Lanes, West Virginia). In 1983, the name was changed to National Education Center - National Institute of Technology Campus. In December 1995, Corinthian Colleges, Inc. acquired the school.In February 1996, the main campus moved to Southfield, Michigan and was changed to National Institute of Technology in June of 1996 along with the Cross Lanes campus. In January 2001, the Dearborn campus was added and the Detroit campus was added in November 2003. All became Everest Institute in October of 2006. In 2010 Everest dropped their electronic engineering program in favor of more health realated careers.


S408 Pickett 1020-ES National Radio Institute
Pickett 1020-ES National Radio Institute
Made in USA by Pickett for NRI
Front Scale: K, A [ B, ST, T, S, C ] D, DI
Back Scale: 2π, DF [ CF, L, CI, C ] D, DI


Pickett 1025 Helical Spring Design - 1952-56

ISRM 13.00.00.67



The 1025 replaced these 1947 & 1952 Wallace Barnes ASC Cardboard versions See the Misc USA gallery.
Pickett 1025 - Helical Spring Design - 1952-56
Made in USA - Associated Spring Corp (ASC) - Original design(c)1952
Front Scale: P/f or M/T [ S, KT, D (Dia O.D. coil), D/d, ■ ● ] d (dia O.D. wire)
Back Scale: P or M [ N (number of coils), DT, G, E, D, ■ ● ] d
Original owner: J.B. Beckwith, Spring Designer at ASC
Archive - donated by Jack Rababeh, Senior Engineer at ASC
1952 Manual 3.41Mb


Pickett 1025 - Helical Spring Design 1957-1958

ISRM 13.09.17.02

Pickett 1025 - Helical Spring Design - 1957-1958
Made in USA - Associated Spring Corp (ASC) - Design©1952
Front Scale (artwork #107):
P/f or M/T [ S, KT, D (Dia O.D. coil), D/d, ■ ● ] d (dia O.D. wire)
Back Scale: P or M [ N (number of coils), DT, G, E, D, ■ ● ] d
Original owner: Tom Pulley, engraved on slide.


Pickett 1025 - Helical Spring Design

S127



A low cost 1960 cardboard version of the times
Pickett 1025 - Helical Spring Design - c1959
Made in USA - Associated Spring Corp (ASC) - Design©1952
Front Scale: P/f or M/T [ S, KT, D (Dia O.D. coil), D/d, ■ ● ] d (dia O.D. wire)
Back Scale: P or M [ N (number of coils), DT, G, E, D, ■ ● ] d


Pickett 1025 - Helical Spring Design 1962

ISRM 13.00.00.70
Pickett 1025 - Helical Spring Design - 1962
Made in USA - Associated Spring Corp (ASC)
Note: Modern logo, curved bracesconvex lens.
Front Scale: P/f or M/T [ S, KT, D (Dia O.D. coil), D/d, ■ ● ] d (dia O.D. wire)
Back Scale: P or M [ N (number of coils), DT, G, E, D, ■ ● ] d
Archive - donated by Jack Rababeh, Senior Engineer at ASC

 



Pickett - Fisher Control Valve Sizing Rule

18.03.20.03
Pickett - Fisher Control Valve Sizing Rule ©1954
Made in USA - Fisher Governor Co, Marshal Town, Iowa
Front Scale: Steam Valve Sizes, Pressure Drop, D [ C, Sp Gr, Viscosity, Flow, Q] D, Cv, Liquid Valve Sizes
Back Scale: P1, PC, PSIG [ P0, ∆P, Sp.Gr., Gas Temp., Quality, Q ] Cg, CS, Gas valve Sizes
Belonged to Robert N. Curry. Gifted by his friend Alice Bowling of Louisville, Kentucky.
Robert N. Curry He was a 1949 graduate of Western Kentucky University. Bob was the head of Measurement for Texas Gas Transmission Corp and authored a book on Natural Gas processing Fundementals of Natural Gas Conditioning. He was former chairman of the AGA Transmission Measurement Committee. Several of his slide rules are currently in the ISRM galleries.


Pickett 1041 - Fisher Universal Valve Sizing Rule

18.03.20.04
Pickett 1041 - Fisher Universal Valve Sizing Rule (c)1967
Made in USA - Fisher Governor Co, Marshal Town, Iowa
Front Scale: PSI, Pressure Drop [ Inlet press., Gas SG, Temp, C1 Q] D, Cg/Cs, %QC1
Back Scale: ∆P, %QC2 [ P1, CIF, L, CI, C ] Q, Cv, Cg
Belonged to Robert N. Curry. Gifted by his friend Alice Bowling of Louisville, Kentucky.


Pickett N1041-GP Fisher  Universal Valve Sizing

REF S486
Pickett N1041-GP - Fisher Universal Valve Sizing Rule -c1970
Made in USA - Fisher Governor Co, Marshal Town, Iowa -(c)1967
Front Scale: PSI, Pressure Drop, %QC2 [ Inlet press., Gas SG, Temp, C1, Q ] D, Cg/Cs, %QC1
Back Scale: ∆P, %QC2 [ P1, Inlet Density, Flow Q ] Cv, Cg
Instruction Card


Pickett 1050 Fuller Traffic Rule

REF
Pickett 1050 Fuller Traffic Rule - c1956
Made in USA - Triangle Logo, Rounded Stainles braces Steel cursor bars.
Front Scale: Skid-Stop Feet [ coefficient of friction ] speed - MPH
Back Scale: MPH, FT/sec [ C ] D, A
Note: Used by the Los Angeles Police Department
Archive - Scan provided by Nick Stuph



Pickett N1050 Fuller Traffic Rule

ISRM 22.06.18.03
Pickett N1050 Fuller Traffic Rule - c1974
Made in Mexico - Modern Logo. Convex lens, curved stamped braces.Nylon cursor bars.
Front Scale: Skid-Stop Feet [ Coefficient of Friction % ] speed - MPH
Back Scale: MPH, FT/sec [ C ] D, A
Gift Of Michael Frey of Newmarket, New Hampshire.



REF Pickett 1060 Dow Chemical Corp

Thomas C. Mandrell (1919-2002)
Pickett 1060 Dow Chemical Corp
Made in USA by Pickett for Dow Chemical Corp. c1950
Front Scale (Artwork Code 87): A [ B, CI, C ] D, L
Back Scale (Artwork Code 88): Gas Flow [ Pipe Dia Gas, Pipe Dia Air, Pressure Sum (Length in Miles)] Pressure Difference
Archive - Scan provided by Rick Mandrell in honor of his father Thomas C. Mandrell Thomas C. Mandrell used this slide rule during his career: Mandy was born on a farm in Western Oklahoma in 1919, served as a B-17 pilot in Germany; shot down in 1944 and spent a year as a German POW. Returned from the war and graduated from the University of Oklahoma with a BS in Chemical Engineering. He worked at Dow Chemical in Freeport and Houston, Texas from the late 1940's until 1984. Spent most of his career in Dow's pipeline department. His career culminated with assignments in Calgary, Canada; Hong Kong; and Adelaide, South Australia working on international projects for Dow. He died in 2002 in Houston, Texas


Pickett 1060-ES Dow Chemical Corp

ISRM 11.05.14.01
Pickett 1060-ES Dow Chemical Corp
Made in USA by Pickett for Dow Chemical Corp - c1960
Front Scale (Artwork Code 87): A [ B, CI, C ] D, L
Back Scale (Artwork Code 88): Gas Flow [ Pipe Dia Gas, Pipe Dia Air, Pressure Sum (Length in Miles)] Pressure Difference
Donated by Rick Mandrell in honor of his father Thomas C. Mandrell
Thomas (Mandy) Mandrell (1919-2002) used and collected these slide rules while working for Dow Chemical Co's pipeline department. See Mandy's extended biography on the Pickett 1060 above. Note that both slide rules use the same artwork throughout the manufacturing changes.
 

Pickett 1072 Connecticut Spring Corp

REF

Pickett 1072 Connecticut Spring Corp
Helical and Flat Spring Design - 1962
Made in USA by Pickett for Connecticut Spring Corp
Front Scale: T, D [ dh, D/d, c(b/h), M or P ] STRESS
Back Scale: dh [ dc, DT, Tors (b/h), N, G, E, C(RATIO b/h), ] MTR
Archive - Scan provided by David Hecht Collection


Pickett 1080 Refinery Supply Co.

REF

Pickett 1080 Refinery Supply Co. (RS #35350) 1953
Made in USA by Pickett for Refinery Suppy Company, Tulsa-Houston
Front Scale: A-Coefficient [ b-Cubic Feet, C-Diff. ] D-Pressure Vacuum
Back Scale: A [ C, CI, C] D
Archive - Scan provided by Franco Maddaleno, Italy
RS Specialties #35350 2 page PDF


Pickett 1082 Easterly Rafter Framer

REF

Pickett 1082 Easterly Rafter Framer
Made in USA by Pickett - Designed by John I, Easterly, Watsonville, CA c1957
Front Scale: CR (Common Rafter) Hip-Vally Scale [ G ] H
Back Scale: CR (Common Rafter) Hip-Vally Scale [ E ] F
Archive - Clay Castleberry Collection
 

Pickett 1084 Resistance Design

REF

Pickett 1084 Resistance Design - 1954
Made in USA by Pickett
Copyright (Designed by) S.E. Hardaway
Front Scale: Ohms, Lemgth and wire gage
Back Scale: K, A, DF [ CF, T, S, CI, C] D, L
Archive - Scan provided by Franco Maddaleno, Italy
 

Pickett N1090-ES Connor Spring Co

REF

Pickett 1090-ES Connor Spring Co
Helical and Flat Spring Design - 1962
Made in USA by Pickett for Connor Spring Co
Front Scale: d [ D, ■ T ●, DT, ■ ●, E, G, N ] Rf or Rt
Back Scale: d [ D, S, ■ T ●, ■ ●, D/d ] P or M
Archive - David Hecht Collection
N1090-ES Pickett Manual 3.41Mb


Pickett 1100 - Helical and Flat Spring Design - 1962

ISRM 13.00.00.69
Pickett 1100 - Helical and Flat Spring Design - 1962
Made in USA - Associated Spring Corp (ASC): Front Scale (artwork 67): Flat Springs
Pounds/M [ Length, Material Properties, Wire Shape Correction factor, Width] Thickness
Back Scale (artwork 68): Helical Springs
Pounds/M  [ No.Coils, Material Properties, ■ ● , Mean Dia ] Wire Dia
Archive - Donated by Jack Rababeh, Senior Engineer at ASC


Another ASC slide rule made by K&E


Pickett Slide Rule Retail Display Carousel
Right photo courtesy of Gary Rourke collection.
Pickett Retail Display Stand 1970
Made in USA for retail stores and university bookstores
N1010-ES ($12.95)
N1010SL-ES ($14.95)
N200-ES ($6.95)
N902-ES ($5.95)
N4-ES ($29.95)
N3P-ES ($13.95)
N3-ES ($26.95)
N500-ES ($16.95)
N600-ES ($10.95)
Archive - Left Photo and prices courtesy of Tom Bullock

Pickett Teaching (Classroom size) Slide Rules


Go to Pickett Demonstration and Teaching Slide Rules
Pickett manufactured large slide rules for mounting in class rooms. They came in 4 foot and 7 foot versions. The stock and slide are of plywood (tounge and grooved), the end brackets are sheet aluminum. The cursor consisted of pine with aluminum paint, with a clear plastic lens. Both sizes came with metal eye loops for hanging from a wall or ceiling.


Pickett & Eckel Historical Timeline

1943 Pickett company founded, in Chicago, by Roswell Colvert Pickett, a printer.
1943 Art Eckel joins Ross Pickett to form Pickett & Eckel.
1944 First Pickett & Eckel slide rules made from printed paper card stock are sold.
1946 The first magnesium slide rules are made, called the Deci-point.
1946 Ross moves to California to start another division. Chicago company managed by Mr. Florian.
1948-49 Art Eckel leaves company. Ross's son, John Pickett, receives BS in Engineering from the University of Redlands
1949-50 John Pickett receives MS in business from University of Southern California
1949-50 The Eckel name is dropped from the slide rule (purportedly because of a law suit with K&E). Company name remains Pickett & Eckel
1951-1967 John Pickett joins Pickett Marketing Department
Early 1950's Pickett contracts with Cal-Pan Co. to make aluminum slide rules in Alhambra, CA.
1953-54 Cal-Pan bought out by Pickett & Eckel.
1953-54 John Pickett forms Pacific Leather Works to make slide rule cases.
1957 John Pickett becomes president of Pickett & Eckel.
1964 Pickett moves to Santa Barbara.
1964 Pickett family sells company to Times Mirror Co for $1.5 million. Name changes to Pickett Industries.
1967 John Pickett leaves Pickett Industries.
1969 Roswell (Ross) Covert Pickett dies Dec 23, 1969 in Santa Barbars, CA.
1974 Pickett moves to Nogales, Arizona from Santa Barbara, CA, with a new manufacturing facility in adjacent Nogales, Sonora, Mexico
1975 Pickett Industries combined into Chartpack/Pickett under Chartpack management.
August 1976 Slide rule manufacturing ends. Drafting supplies continue.
September 1980 Pickett begins closing the Nogales, Sonora, Mexico plant and moves HQ and operations to a new plant in Tucson, Arizona..
c1980 Dick Schwartzer buys the entire Pickett slide rule inventory that was destined for scrap
January 1981 The closure of the Nogales, Arizona facility is completed.
1985 Pickett Industries sold to Chartpack.
1998 Manufacturing combined with Chartpack in Leeds, Massachusetts.
1999 Pickett-Chartpak Industries Division continues manufacturing art and drawing templates.
2005 Current address: Chartpak, Inc - One River Road - Leeds, Ma 01053 (413)584-5446
2005 Dick Schwartzer dies. A large inventory of plastic Picketts left unsold.
Timeline researched by Bruce Reichelt, expanded by Mike Konshak, updates by Douglas Harland

Pickett & Eckel Announce release of Deci-Point Slide Rule. Radio-News March 1946
An insider's insight to the Pickett company, from 1956-1959 is documented in this 2007 Journal of the Oughtred Society article by Allan Boardman

L.A. Times Buys Pickett, Inc. 1964

Arizona Daily Star - Tue Dec 16, 1980

Arizona Republic
Mon Jun 10, 1974


Arizona Daily Star
Sunday Feb 6, 1977

Newspaper articles contributed by by Douglas Harland


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International Slide Rule Museum