Slide Rules

Slide Rule Collection

Mike Syphers

10/31/2018

Total Slide Rules in collection: 95

Maker number
Alco 1
Boykin 1
C-Thru 1
Dietzgen 6
Engineering Instruments 2
Faber-Castell 5
Factory10 1
Gilson 1
Goodyear 1
K&E 28
Lawrence 1
MATSKU 1
Otis King 1
Pickett 16
Post-Sun-Hemmi 15
Relay-Richo 1
Rietz 2
Stanley 1
Sterling 3
Takeda 1
Unique 1
noID 5

Keuffel and Esser, USA

Total number of K&E slide rules in the collection: 28.

Model Year Serial Case Notes
4041 1900-1906 A11 no Rule in decent condition; quite yellowed; prod. mark A11 on end of rule; square metal/glass cursor; no model number on rule
4053-2 1910-1914 404 no Nice 8-inch variant of 4053; prod. marks 404; square metal cursor; ends of 8 inch ruler are worn
4053-3 1910-1914 374* no good condition; no cursor; prod. marks 374* on end of rule
4088-3 1913-1914 55 box good condition; box too; prod. marks 55 on end of rule
4041 1915-1921 207 box Rule in good condition; prod. mark 207 on end of rule
4058 1915-1925 no Students Rule; nice condition
4058 1916-1922 no good condition; very early 4058
4088-3 1916-1922 324 box Rule in good condition; prod. mark 324 on end of rule
4088-3 1923 39516 no good condition
4092-3 1923 64405 yes good condition; serif type; Doc McClain; stitched case
N4053-3 1925 140188 yes stitched case; C.H. Drake O.S.C.
4092-3 1927 277653 yes stitched case; missing flap
4092-3S 1928 295472 yes stitched case; R.W. Bluhm
4058W 1930-34 box Beginners Rule; wood curser frame
4092-3S 1931 441408 yes stitched case; J.A.B.
N4053-5 1934 633813 yes 20in slide rule; very nice condition
4058W 1936-43 box Beginners Rule
N4041 1938 833535 box Rule and box in nice condition
4098A 1943 42379 yes nice condition; box and case
4054 1945 219646 yes nice box; broken cursor block
4055 1949 568414 yes
4081-3 1949 589003 yes very worn-out case; U. Illinois engraved; as well as Gates
4080-3 1951 762828 yes riveted leather case; McIntyre; missing screw; missing glass on curser
4081-3 1953 912871 yes riveted case; metal ring; “”O’Neal“”
9071-3 1954 10192 yes case deteriorating; DORIC rule (only made for ~2 yrs)
4181-1 1954 143610 yes black leather; with metal clip
4181-1 1955 111945 yes black leather; stitched
68-1100 1969 167135 yes Deci-Lon; original owner: Erin Sommer; Maryland

Pickett, USA

Total number of Pickett slide rules in the collection: 16.

Model Year Serial Case Notes
1000 1945-49 A075934 no Magnesium; P&E label
2 1946-47 29517 yes Magnesium; Deci Log Log label; How to Keep Your Deci.Point Slide Rule a Perfect Precision Instrument sheet
K500 1948 B056801 no Magnesium; P&E label
500 1948 B114270 yes Magnesium; P&E label; fabric cover + plastic case
500-T 1952-54 yes Label style 3; grooved rail
4-ES 1958 yes Label style 4; grooved slide; leather case, box, instructions, warranty, other notes; very good condition
600-ES 1959 yes leather case: Electrosolids Corp., Hollywood; cracked cursor
N-500-ES 1962 yes Mike Lawter on case
N-500-ES 1962 yes 1962 mark; leather case with belt clip
N600-T 1962 yes 1962 mark; leather case with clip and pull-extractor; flat lens
N1006-ES 1962-64 no rule, box, instructions; no case
ELECT. N-515-T 1962-65 yes Aluminum+leather case, strap – great condition
N909-ES 1962-75 yes metric conv.on back
N-500-T 1964-75 yes Aluminum+leather case
N902-ES 1973 yes Complete package box, case, instructions; sticker: 5 moon flights on box (price tag, $6.95)
20-BASIC c.1955 yes Label style 3; Leather case with clip

Post, USA (and Sun/Hemmi, Japan)

Total number of Post, Sun and Hemmi slide rules in the collection: 15.

Model Year Serial Case Notes
1441/ model 32 1930-43 yes + box references to Japan scratched out
1447 1941 yes plastic case; instructions
1442 1945 yes
1441 1947-49 yes + box Made in Occupied Japan on inside of leather case, side of cursor
1460 1951 BF box original 1460 box
1460 1952 CL yes case minus flap; Bruce G. Shaw
1460 1953 DC yes leather, stitched case; D.P. Hoose
1441/model 30 1953+ yes
1447 1954 EA box
153 1955 box nice condition, but cracked cursor; instructions
1441 1957 HJ yes
1447S 1962 box
1460 1963 414982 yes NJ (date = Oct1963) stamped into stock
1460 1966 724327 yes case in very nice condition
1460 1968 924473 yes case in very nice condition

Dietzgen, USA

Total number of Dietzgen slide rules in the collection: 6.

Model Year Serial Case Notes
1739-L 1954 no dirty, but good condition
1776 1972 yes + box box, instructions, leather case
1745 c.1940 yes cursor in fragile condition; case is for 1745 LM; likely not original
1732 c.1952 542899 yes worn case; rule in good shape; 87 stamped on end of stock; owned by Reitz
1732 c.1952 548230 yes + box rule in very good condition
1767 c.1965 yes missing end plates; torn case

Faber-Castell, Germany

Total number of Faber-Castell slide rules in the collection: 5.

Model Year Serial Case Notes
1900 box box, rule both in excellent shape; almost like new; rule: 1888-1900, but box says 1900
1900 box Made in Germany - 1888-1900; digit-registering curser, cracked glass; box has 1900 reference
1921 box instructions and original box
1/87m 1947 box German; 3 hairlines; nice rule
67/54R c.1958-1966 yes Made in Germany; Addiator; Hatfield Electric Co. on case

Lawrence / Engineering Instruments, USA

Total number of Lawrence or Engineering Instruments slide rules in the collection: 3.

Model Year Serial Case Notes
10-B 1942 yes good condition; made in Peru, IN
10-B c.1950 no made in Peru, IN; no cursor
250-BT c.1960 yes Rule in good condition; blue case; instructions;original box

Sterling, USA

Total number of Sterlng slide rules in the collection: 3.

Model Year Serial Case Notes
587 1972 no pocket rule; from my high school years (Soph year, 1972)
594(?) 1973 yes Decimal Trig Log-Log; from my high school years (Jr year, 1973)
594(?) 1973 yes Decimal Trig Log-Log; duplicate of my high school rule

Others

Total number of Other slide rules in the collection: 14.

Maker Model Year Serial Case Notes
Stanley Fuller’s Calculator Model No. 1 1909 2668 - 09 box Original wooden box, with original instructions and flyers; museum quality
Gilson Midget 1919 yes 99 mm Gilson original slide w/ original case
Unique Navigational 1943 box Original box from London; Lt. Filipek (1943) ~WWII
Factory10 YCP-12 1957 box nice condition; made in year of Sputnik (and my birth year!)
Boykin RotaRule Model 510 1965 yes Original box, case, instruction book, ads – all the papers; 1 of only about 200 produced
MATSKU KL-1 1969 box box, directions
Goodyear c.1950 yes original paper “”case“”
Otis King Model L; Type B/C (rare) c.1950 R1513 box Original box, instructions (8 pg, folded)
Relay-Richo No. 311 c.1960 yes perfect condition
Rietz UTO 601 c.1960 yes + box promo-“”Acme Industries, Jackson, MI“”; very good condition
Rietz UTO 601 c.1960 yes promo-“”Joslyn Service“” (on rule + case)
Alco P255 c.1966 no Made in Japan; all metal; addiator/slide rule combo; only model made by this company?
Takeda No. 28 c.1970 yes good condition
C-Thru S-96 c.1973 no from my high school years

Unidentified

`Total number of unidentified slide rules in the collection: 5.

Year Serial Case Notes
c.1920 yes small 4.5 inch rule, marked “”Germany“” on inside of stock and on leather case; small metal cursor (similar to Faber of early 1900s) maybe not original to the rule; unmarked A-B-C-D scales on front; marked S-T scales and unmarked CI scale on back
c.1940 yes Made in France; no company ID; This rule belonged to my Dad who worked as an engineer for RCA Camden from the 30s through their demise. All the best… Kathy from FindGreatStuff, Medford, NJ
c.1950 yes Made in U.S.A.; no company ID; case (Tom Walsh); nice and precise
c.1970 no Made in Japan; from my high school years
c.1970 yes Made in U.S.A.; no company ID

Texas Instruments Slide Rule Calculator

Model Year Serial Case Notes
SR-50 1974 SR50 0224435 yes obtained for Christmas, high school, Sr. Year; leather case, instruction book

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Mike Syphers,
May 23, 2018, 7:30 PM
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Faber.jpg
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Mike Syphers,
May 23, 2018, 7:31 PM
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Mike Syphers,
May 23, 2018, 7:31 PM
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KnEpic.jpg
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Mike Syphers,
May 23, 2018, 7:31 PM
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PeruIN.jpg
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Mike Syphers,
Jul 8, 2018, 3:52 PM
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