FREDERICK POST



ISRM Teledyne Post 1426 Business (Hemmi P452) 		Teledyne Post 1426 Business (Hemmi P452)
Made in Japan by Hemmi - date Code TH (Aug 1969)
Front Scale
LL1,LL2, LL3, CR DF [ T CF, CIF, % CI, T C ] R D, L, 11in, 23cm
Back Scale
ST, K, A [ B, BI, CI, C ] PQ D, P, S, T
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.


P128 Post 1441 w/ magnifier (early model)		 Post 1441 w/ magnifier  (early model)
Made in Japan - Note little rivets on ends
Front Scale
4in // A [ B, C ] D || 10cm
Back Scale: [S, L, T ]
Back Blank.


P129 Post 1441 w/ magnifier 		Post 1441 w/ magnifier
Made in Japan - No rivets on front
Front Scale
4in // A [ B, C ] D || 10cm
Back Scale: [S, L, T ]
Back Blank.


P147 Post 1441 w/ magnifier (Late model) 		Post 1441 w/ magnifier (Late model)
Made in Japan by Hemmi - Note: Post logo
Front Scale
4in // A [ B, CI, C ] D
Back Scale: [S, L, T ]
Back Blank.


P088 Post 1442 Duplex 		Post 1442 Duplex - c1945
Made in USA - Same as Charvoz-Roos SR-108
Front Scale
K, A [ B, S, T, C ] D, DI
Back Scale
Fraction-Decimal[ L, C2, C1 ] D1, D2, D
Manual 7.56Mb


P057 Post 1444-P 		Post 1444-P Closed Simplex
Made in USA by Charles Bruning, Body same as Bruning 2401
Front Scale
12.5cm // A [ B, CI, C ] D, K \\ 5in
Back Scale: [S, L, T ]
Back Blank.


P122 Post 1444 		Post 1444
Made in Japan
Front Scale
5 inch // A [ B, CI, C ] D
Back Scale
[ S, L, T ]


P170 Post 1444K 		Post 1444K
Made in Japan - date code KJ
Front Scale
5 inch // A [ B, CI, C ] D, K
Back Scale
[ S, L, T ]


P121 Post 1444K 		Post 1444K
Made in Japan - date code IB
Front Scale
5 inch // A [ B, CI, C ] D, K
Back Scale
[ S, L, T ]


P231 Post 1445 5 in 		Post 1445 5 in Closed Simplex
Note: Pre-war production, the later 8 inch was given the 1445 model number
Made in Japan by "Sun" Hemmi
Front Scale: 5in // DF [ CF, CI, C ] D
Back Scale: [ S, L, T ]
Original Owner: Franklin James Sullivan, (1914-1992) born in  Wilmington, Delaware. Cost Analyst at Baldwin's outside of Philadelphia, PA (1940-1945), then at Atlas Powder Company (Du Pont)/ICI. Had 3 daughters, one provided this slide rule.


ISRM Post 1445 8 in 		Post 1445 8 in Closed Simplex
Has same resolution as a 10 inch scale.
Made in Japan by Hemmi - Post Oval Logo on slide
Front Scale
K, DF [ CF, CI, C ] D, A
Back Scale
[ TI, L, SI ]
Donated by David Hecht Collection, Alexandria, Virginia
3 Ring Binder Sleeve


S497 Post 1445P 8 in 		Post 1445P 8 in
Has same resolution as a 10 inch scale.
Made in Japan by Hemmi, dup-lex style construction
Front Scale
K, DF [ CF, CI, C ] D, A
Back Scale
[ TI, L, SI ]
Back: Frederick Post, Chicago


ISRM Post 1446 Pre-WWII 		Post 1446 Pre-WWII
Made in Japan - Bamboo
Front Scale
A [ B, C ] D
Back Scale
[ S, L, T ]
Back: Conversion Chart


S502 Post 1446-D Student circaWWII 		Post 1446-D Student - cWWII
Missing Cursor, same as Lawrence 250-BT and Dietzgen 1767P
Made in USA by lawrence Engineering
Front Scale
A [ B, CI, C ] D, K
Back Scale
[ S, L, T ]
Back: Conversion Chart
Note: Because the transitional delivery of the 1446 during WWII from other OEM's tham Hemmi had the 'K' scale, once the war was over and shipping from Japan began again, the 'K' scale was added to the post-WWII Post 1446.


ISRM Post 1446 post-WWII 		Post 1446 Closed Simplex
Made in Occupied Japan
Front Scale
A [ B, C ] D, K
Back Scale
[ S, L, T ]
Back: Conversion Chart
Note: Added 'K' Scale.
Donated by David Hecht Collection, Alexandria, Virginia


P174 Post 4" Pocket 1447 		Post 4" Pocket 1447 - Closed simplex
Made in Japan by Sun Hemmi
Front Scale: 4in // A [ B, C ] D || 10cm
Back Scale: [ S, L, T ]
Back: Stamped Sun Logo
Note: The 1447 model number evidently started out as a 4" pocket rule then migrated into the 10" models that follow. The 4" rules became 1441's.


S448 Frederick Post 1447 cWWII 		Frederick Post 1447 cWWII
Made in USA - OEM could be Acu-Rule, Dietzgen, Charvoz-Roos
Same as Charvoz-Roos SR-105M (S395) and Dietzgen 1767P (S001)
Note: Scales are a plastic laminate over wood like the Hemmi but not bamboo Front Scale
A [ B, CI, C ] D, K
Back Scale
[ S, L, T ]
Back: Conversion Chart


S452 Post 1447 Post WWII 		Post 1447 - post  WWII
Made in Occupied Japan (no Post Logo)
Front Scale
A [ B, CI, C ] D, K
Back Scale
[ S, L, T ]
Back: Conversion Chart


ISRM Post 1447 		Post 1447 - Date Code CB on front face
Made in Japan - notation 'Sun Hemmi Japan' - No Post logo
Front Scale
A [ B, CI, C ] D, K
Back Scale
[ S, L, T ]
Back: Conversion Chart
Donated by David Hecht Collection, Alexandria, Virginia


ISRM Post 1447 		Post 1447 - Closed simplex
Made in Japan - Notation 'Sun Hemmi Japan', Oval Post Logio on upper stator
Front Scale
A [ B, CI, C ] D, K
Back Scale
[ S, L, T ]
Back: Conversion Chart

Instructions
5.87MB pdf
Abraham
Jacobson 		Manual Donated by Anne Hollek, in memory of her Grandfather, Abraham (Jake) Jacobson. (1890-1986) WWI and WWII veteran, man of faith and optimism, retired from the U.S. Post Office. Inventor - US Patent# 2939147 issued 1960.


ISRM Post 1447 (1951) 		Post 1447 - date code dcBI
Made in Japan - Notation 'Hemmi Japan', Post Oval Logo On Slide
Front Scale
A [ B, CI, C ] D, K
Back Scale
[ S, L, T ]
Back: Conversion Chart
Original Owner (written on case): Jim Huste, who contacted the ISRM when he saw his slide rule displayed at ISRM. Jim is the co-founder of TransLanTech Sound in New York City, NY. Jim's radio career includes over 12 years as a DJ, Music and Program Director. He has been Chief Engineer of nine radio stations including WOMC in Detroit, WYNY and WOR in New York and Pirate Radio, Los Angeles before forming TransLanTech.


REF Post 1447 DP Projection Rule 		Post 1447 DP Projection Rule
Made in Japan by Sun Hemmi
Upper Scale
A [ B, CI, C ] D, K
Lower Scale
A [ S, L, T ] D, K
Archive - Not in Collection


S334 Post 1449 Mannhiem 		Post 1449 Mannhiem - Closed simplex
Patent 22129, British patent 107562, Brevete S.G.D.G.
Made in Japan by Sun Hemmi
Front Scale
10in // A [ B, C ] D || 28cm
Back Scale
[ S, L, T ]
Back: Conversion Chart (faded)


S075 Post 1450 Versatrig 		Post 1450 Versatrig - Duplex
Made in Japan by Hemmi
Front Scale
L, A [ T T, SecT ST, Cos S, C ] D, DI
Back Scale
K, DF [ CF, CIF, CI, C ] D, R1, R2
Original Owner: Boulder, CO


S335 Post 1450 Versatrig 		Post 1450 Versatrig - Duplex
Made in Japan by Hemmi - Date Code LK - Nov 1961
Front Scale
L, A [ T T, SecT ST, Cos S, C ] D, DI
Back Scale
K, DF [ CF, CIF, CI, C ] D, R1, R2


S443 Frederick Post 1452 - US Patent 1/81722 		Frederick Post 1452 - Closed Simplex
Made in Germany by [?]- US Patent 1/81722
Front Scale
10 // A [ B, CI, C ] D, K || 26cm
Back Scale
[ S, L, T ]
Back: Table of Constants 


S327 Post 1452 C-type Cursor 		Post 1452  - Early C-Type Cursor
Made in Japan
Front Scale
10 // A [ B, CI, C ] D, K || 25cm
Well: Extended Linear Scale
Back Scale
[ S, L, T ]
Back: Conversion Chart
Original Owner put "buy American" in well


S024 Post 1452 Universal 		Post 1452 Universal - Closed Simplex
Made in Occupied Japan
Front Scale
10 // A [ B, CI, C ] D, K || 25cm
Back Scale
[ S, L, T ]
Back: Conversion Chart


S023 Post 1452-D 		Post 1452-D - Closed Simplex
Made in U.S.A
Front Scale
10in // A [ B, CI, C ] D, K \\ 25cm
Back Scale
[ S, L, T ]
Back: Conversion/Geometry Chart


ISRM Post 1452W Universal 		Post 1452W Universal - date code LA (Jan 1961)
Made in Japan by Sun Hemmi for Frederick Post
Front Scale
10in // A [ B, CI, C ] D, K || 27cm
Back Scale
[ S, L, T ]
Back: Conversion/Geometry Chart
Original Owner Initials: H.K.


S297 Post 1452P 		Post 1452P - Wide Closed Simplex
Made in USA by Charles Bruning
Front Scale
10in // A [ B, CI, C ] D, K \\ 25cm
Back Scale
[ S, L, T ]
Back: Conversion


S076 Post 1457 		Post 1457 - Simplex - c1945
Made in U.S.A
Front Scale
T, DF [ CF, CIF, CI, C ] D, S. ST
Back Scale
Conversions [ B, K, L, C ] Trig Identities


S017 Post 1458 		Post 1458 Duplex
Made in U.S.A
Front Scale
K, A [ B, S, T, CI ] D, L
Back Scale
DF [ CF, CIF, C ] D


S072 Post 1459 		Post 1459 - Duplex
Made in Japan
Front Scale
K, A [ B, CI, C ] D, T
Back Scale
Theta, Re, P [ Q, Q', C ] LL3, LL2, LL1
Original Owner: R.Williams


ISRM Post 1460 Versalog - Marked Hemmi 258 		Post 1460 Versalog - Marked Hemmi 258
Made in Japan by Hemmi - Date code BA - March 1951
Front Scale
LL/1, LL/2, LL/3 [ T/T, SecT/ST, Cos/S, C ] D, LL3, LL2, LL1
Back Scale
LL0, LL/0, K, DF [ CF, CIF, CI, C ] D, R1, R2, L
Note: Cos label printed in Black. This is the first and only version where Hemmi 258 appears on a Post Versalog. The case only has Hemmi on it.
Donated by David Hecht, Alexandria, VA


ISRM Post 1460 Versalog 		Post 1460 Versalog - No S/N
Made in Japan by Hemmi - Date code DC - September 1952
Front Scale
LL/1, LL/2, LL/3 [ T/T, SecT/ST, Cos/S, C ] D, LL3, LL2, LL1
Back Scale
LL0, LL/0, K, DF [ CF, CIF, CI, C ] D, R1, R2, L
Note: Cos label printed in Black
Donated by Enn Veskimets, Lutherville, Maryland.
Enn Veskismets obtained this slide rule in 1952 while attending Ballard High School in Seattle, Washington. He attended the University of Washington in Seattleand graduated with a degree in Civil Engineering in 1959. He enlisted in the U.S. Army and worked at the Aberdeen Proving Grounds (1959-1962), and after an honorable disharge, continued to work with the Army Corps of Engineers in Baltimore, Maryland from 1962-1992. He retired as Chief Engineer (P.E), in the Design Branch. Enn said he would hide his slide rule in his father medical bag in high school as if you hung it on your belt, you would be called a geek. He later acquired a pocket version of the 1460, the Post 1461, in 1957, also shown in this gallery.


S078 Post 1460 Versalog 		Post 1460 Versalog - No S/N
Made in Japan by Hemmi - Date code DC - March 1953
Front Scale
LL/1, LL/2, LL/3 [ T/T, SecT/ST, Cos/S, C ] D, LL3, LL2, LL1
Back Scale
LL0, LL/0, K, DF [ CF, CIF, CI, C ] D, R1, R2, L
Note: Cos label printed in Black
Original owner, case marked: D.L. Ross, M.R.H.
Retail Box label - Price in 1953 = $26.25, DAU Bookstore (Defense Acquisition University, part of the Department of Defense)


S078 Post 1460C Versalog 		Post 1460C Versalog - S/N 020522
Made in Japan by Hemmi - Date code JK - Nov 1959
Front Scale
LL/1, LL/2, LL/3 [ T/T, SecT/ST, Cos/S, C ] D, LL3, LL2, LL1
Back Scale
LL0, LL/0, K, DF [ CF, CIF, CI, C ] D, R1, R2, L
Note: Cos label printed in Blue


S079 Post 1460 Versalog 		Post 1460 Versalog - S/N 811908
Made in Japan by Hemmi - Date code RE - June 1967
Front Scale
LL/1, LL/2, LL/3 [ T/T, SecT/ST, Cos/S, C ] D, LL3, LL2, LL1
Back Scale
LL0, LL/0, K, DF [ CF, CIF, CI, C ] D, R1, R2, L
Note: Cos label printed in Green


S080 Post 1460 Versalog II 		Post 1460 Versalog II
Made in Japan by Hemmi - Date code UE - May 1970
Front Scale
logX, LL/1, LL/2, LL/3 [ T/T, SecT/ST, Cos/S, C ] D, LL3, LL2, LL1
Back Scale
LL/00, K, A, DF [ CF, CIF, CI, C ] D, R1, R2, LL0
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.


S215 Post 1460 Versalog II - USAFA Issued 		Post 1460 Versalog II
Made in Japan by Hemmi - Date code TG - July, 1969
Front Scale
logX, LL/1, LL/2, LL/3 [ T/T, SecT/ST, Cos/S, C ] D, LL3, LL2, LL1
Back Scale
LL/00, K, A, DF [ CF, CIF, CI, C ] D, R1, R2, LL0
Donated by K.C. Schwarz, who used this at the U.S. Air Force Academy (CS-29) in Colorado Springs, CO. K.C. graduated in 1975 after commanding the Honor Squadron. He served as a C-9A medical evacuation pilot and aircraft reliability engineer during his years in the Air Force. Later, working for Northrop, he led the support simulation and modeling group on the B-2 (Stealth) Bomber program. In 1990 K.C. moved to Colorado and served at Ball Aerospace for several years. He later moved into investment banking and then began working with startup and early-stage companies. He has founded several high tech and aerospace companies in the systems integration and satellite surveillance markets.


ISRM Post 1461 Electronic 		Post 1461 Electronic
Made in Japan by Hemmi for Frederick Post Co.- 1936
Front Scale
L, K, A [ B, CI, C ] D, T(tau), G(theta)
Back Scale
Theta, R(theta), P [ Q, QI, C ] LL3, LL2, LL1
Donated by David Hecht, Alexandria, VA


ISRM Post 1461 Versalog (Pocket) 1957
Enn Veskimets (2010)
Post 1461 Versalog (Pocket)
Made in Japan by Hemmi - Date code HK - November 1957
Front Scale
LL/1, LL/2, LL/3 [ T/T, SecT/ST, Cos/S, C ] D, LL3, LL2, LL1
Back Scale
LL/0, LL/00, K, DF [ CF, CIF, CI, C ] D, R1, R2, L
Note: Cos label printed in Black
Donated by Enn Veskimets, Lutherville, Maryland. Enn obtained this slide rule in 1957 while attending University of Washington in Seattle, Washington. He graduated with a degree in Civil Engineering in 1959. He enlisted in the U.S. Army and worked at the Aberdeen Proving Grounds (1959-1962), and after an honorable disharge, continued to work with the Army Corps of Engineers in Baltimore, Maryland from 1962-1992. He retired as Chief Engineer (P.E), in the Design Branch. Enn said he would hide his slide rule in his father medical bag in high school as if you hung it on your belt, you would be called a geek. He acquired his first slide rule, the Post Versalog 1460, while attending Ballard High School in Seattle (also shown in this gallery). Both slide rules served him well over his career.


ISRM Post 1461 Versalog (Pocket) 1967 		Post 1461 Versalog (Pocket)
Made in Japan by Hemmi - Date code RF - June 1967
Front Scale
LL/1, LL/2, LL/3 [ T/T, SecT/ST, Cos/S, C ] D, LL3, LL2, LL1
Back Scale
LL/0, LL/00, K, DF [ CF, CIF, CI, C ] D, R1, R2, L
Note: Cos label printed in Green
Donated by Robert C. Eaton, Boulder, Colorado


ISRM Post 1461 Versalog II (Pocket) 1969 		Post 1461 Versalog II (Pocket)
Made in Japan by Hemmi - Date code TG - July 1969, Modified Scales & Labels
Front Scale
L, LL/1, LL/2, LL/3 [ T/T, SecT/ST, Cos/S, C ] D, LL3, LL2, LL1
Back Scale
LL/0, K, A, DF [ CF, CIF, CI, C ] D, R1, R2, L00
Note: Cos label printed in Green
Note: The Versalog II has an A scale but the original Versalog does not.
Donated by David Hecht, Alexandria, Virginia


S074 Post 1462 		Post 1462 - Duplex - c1945
Made in U.S.A. - Note: White Plastic Ends
Front Scale
LL0, LL00, A [ B, K, L, C ] LL3, LL2, LL1
Back Scale
T, DF [ CF, CIF, CI, C ] D, S, T


S211 Post 1462 		Post 1462 - Duplex
Made in U.S.A. - Note: Black Plastic Ends
Front Scale
LL0, LL00, A [ B, K, L, C ] LL3, LL2, LL1
Back Scale
T, DF [ CF, CIF, CI, C ] D, S, T


ISRM Post 1462 		Post 1462 - Duplex
Made in U.S.A. - Note: Metal Ends
Front Scale
LL0, LL00, A [ B, K, L, C ] LL3, LL2, LL1
Back Scale
T, DF [ CF, CIF, CI, C ] D, S, T
Donated by the estate of James Robert Weber, Lafayette, Colorado
James Robert Weber (1928-2010) Served in the U.S. Air Force, then joined Martin Marietta in Colorado and worked on the ICBM project. In 1965 he was hired on as pilot and technician for National Center of Atmospheric Research (NCAR) flew many flights using a Cessna 172 and a T-28 into storms as part of the National Hail Research Experiment (NHRE), and later the Microscale Meteorology Division. Later James was responsible for maintaining NCAR's link to the University Satellite Network which was connected to the Woods Hole Oceanographic Institution and other U.S. research centers. He retired from NCAR in 1993 after 28 years of service. He is survived by his wife Lois Anne.


REF Post 1462H PostTrig 		Post 1462H - PostTrig
Made in Occupied Japan by Hemmi
Front Scale
LL0, LL00, A [ B, K, L, C ] LL3, LL2, LL1
Back Scale
T, DF [ CF, CIF, CI, C ] D, S, T
Owned by William S. Roe who help found the National Association of Rocketry in 1958. This slide rule can be seen doing Altitude Redustion in an eary NAR 16mm promotional movie. The hands in the picture belong to Bill's son, John Roe, who helped provide the scan. Bill used this slide rule in Japan when he was stationed there. Bill was a great influence and father figure to many young rocketeers of that era including the curator of ISRM.


ISRM Post 1462H PostTrig 		Post 1462H - PostTrig
Made in Occupied Japan by Hemmi
Front Scale
LL0, LL00, A [ B, K, L, C ] LL3, LL2, LL1
Back Scale
T, DF [ CF, CIF, CI, C ] D, S, T
Markings of Owner: H.L Dillingham, North Highlands, 4104 Alan Drive.


REF C04 Post 1464 Binary		 Post 1464  Binary Slide Rule 8in 21.1cm dia.
Made in USA - Gilson Slide Rule Co.
Front Scales
C,CI,A,K,Log,LL1,LL2,LL3,LL4,Binary, Fraction,Drill,Thread, Millimeter
Back Scales
Degrees, S, T, Degrees, S, T, Degrees, S, T, Fractions
Equiv Manual 3.42Mb


S081 Teledyne Post 44CA-600 Versalog II 		Teledyne Post 44CA-600 Versalog II
Made in Japan by Hemmi
Front Scale
L, LL/1, LL/2, LL/3 [ T/T, SecT/ST, Cos/S, C ] D, LL3, LL2, LL1
Back Scale
LL/00, K, A, DF [ CF, CIF, CI, C ] D, R1, R2, LL0
Note: The Versalog II has an A scale but the original Versalog does not.


P087 Teledyne Post 44DA-610 Versalog II 		Teledyne Post 44DA-610 Versalog II
Made in Japan by Hemmi
Front Scale
L, LL/1, LL/2, LL/3 [ T/T, SecT/ST, Cos/S, C ] D, LL3, LL2, LL1
Back Scale
LL/00, K, A, DF [ CF, CIF, CI, C ] D, R1, R2, LL0
Note: The Versalog II has an A scale but the original Versalog does not.

Retail Display - Try before you buy
Year Codes
A B C D E F G H I J K L M
1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962
N O P Q R S T U V W X Y Z
1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975
Month Codes
A B C D E F G H I J K L
Jan. Feb. Mar. Apr. May June July Aug. Sep. Oct. Nov. Dec.

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