4.19 Other Rules

To create one of our previous lists a total of at least three rules of a given manufacturer had to be in the collection. The remainder of the rules are grouped into the “Others” category here, although this tends to contain many of the more significant rules.

Harrow Mark Reducer, E.S.A., London
Routledge Engineer Fuller’s Calculator Model 1
Boykin RotaRule 510 Fowler & Co. Long Scale RX
Jacob and Halse Sector Goodyear Promotional
Fearns Calculators A13, UK Matsku KL-1 (back), USSR
Factory 10 YCP-12, USSR Unique Navigational
Alco P255 (front) Alco P255 (back)
Reiss 3223 (front) Reiss 3223 (back)
Staedtler 54408 H-H Universum

Total number of Other slide rules in the collection: 34.

Maker Model Year Type Mat Size Country Notes
Jacob and Halse Sector 1809 L iv 5.0 UK beautiful but warn; J&H in business 1809-1810; note from owner dated 1861; 6in when folded, log scale is an A of 9.75in
Davies Routledge Engineer
1850 L wd 11.0 UK Maker is T. Davies, Gravel Lane, Southwark; very nice craftsmanship; references to pre-imperial units
Dring & Fage Inland Revenue Rule 1883-1902 L wd 12.0 UK Marked with address 145 Strand, London; used for alcohol excise tax purposes; 24 inch total length
E.S.A. London Harrow Mark Reducer 1898-1925 L wd 11.0 UK Educational Supply Association, incorp. 1898; rule was designed in 1875 by W.D. Bushell for the Harrow School, England, to reduce and calculate examination scores; 2 decades on stock, 3 decades on slide, 36 inch total length
Stanley Fuller’s Calculator Model No. 1 1909 H wd 500.0 UK Original mahogany box, with original instruction manual; nice condition; no hole in handle; from bank in New Jersey
P.A.S. Co.  Engraving Rule
1928 L ss 5.5 USA Engraving Proportion Scale; sold by Art Brown & Bro. Inc. NewYork; similar to Hyde Optical Slide Rule at ISRM
MARC promo
1930 L pl 5.0 FRA UNIS 1919; S.G.D.G. MARC __ PARIS; Engraved inside Chicago Pneumatic Tool Company
MARC promo
1930 L pl 5.0 FRA Made in France; blank promo type; Kathy from FindGreatStuff (Medford, NJ): This rule belonged to my Dad who worked as an engineer for RCA Camden from the 30s through their demise. All the best…
Novotni Weight Calculator
1935 L pl 4.0 USA Novotni, but not marked as such; 13 inch o/a length; By-Products Steel Corporation; Commercial Trust Building, Philadelphia, Pa.
UIF Shanghai 4083-3 1939-1947 L wd 10.0 CHN Chinese-made copy of K&E 4083-3 Vector Rule; paper (copy of K&E layout) on wood; no cursor; exact same rule presented by Clay Castleberry in JOS paper 15.1p36 (see refs.)
Baetzmann Spring Calculator 1941 L wd 2.0 USA Spring Load Calculations slide rule; large format 1 in x 2.5 in x 0.75 in; two slides on front, one on back; owner (maker?) R. K. Baetzmann, 1941
Fowler Long-Scale (RX) 1943 C ss 30.0 UK very nice specimen; nickel-plated felt-lined box
Unique Navigational 1943 L wd 10.0 UK Original box from London; Lt. Filipek (1943) ~WWII
Unique 5L/L
1945 L wd 5.0 UK Log Log, no CI scale; stock v. D; cursor v. iii
HH Universum 1945-1955 L wd 7.5 GER HH Universum rule; green felt-line hinged case with clasp; 3-hairline cursor; great condition; original instruction sheet
American Blueprint Military 1948-1957 L wd 10.0 USA US Military slide rule, for field artillery problems
Otis King Model L 1949 H ss 66.0 UK Type B/C, rare; original box, instructions (8 pg, folded)
Goodyear promo
1950 L pp 5.0 USA original paper case
J.B. Carroll Associated Spring M110 1952 L pl 10.0 USA early version, made for Associated Spring; no cursor
Blundell Rules Limited Radiac No. 1 1952-1956 C pl 2.0 UK radiation exposure calculator; log log scales; reversible land/sea discs; instructions on back
Kahl Scientific Culbertson Slide Rule 1955 C pl 24.0 USA Temperature, Depth, Salinity calcs; Designed by Margaret Culbertson for the U.S. Navy Electronics Lab; full instructions
Factory10 YCP-12 1957 L wd 10.0 USSR nice condition; made in year of Sputnik (and my birth year!); Kiev
Rietz UTO 601
1960 L pl 5.0 DEN promo-Acme Industries, Jackson, MI; very good condition
Rietz UTO 601
1960 L pl 5.0 DEN promo-Joslyn Service (on rule + case)
Staedtler 54408 1964 L pl 10.0 GER Staedtler Mars, made my Nestler?; very clean, great condition; 5-hairline cursor
Boykin RotaRule Model 510 1965 S pl 50.0 USA Original box, case, instruction book, ads – all the papers; 1 of only about 200 produced
Otis King Model K 1965 H ss 66.0 UK Type C; leather case + original box, instructions (8 pg, folded)
Alco P266
1966 L ss 5.0 JPN Made in Japan; all metal; addiator/slide rule combo
Ruyi 1002 1966 L pl 10.0 CHN Vector rule, 28 scales, nice condition
MATSKU KL-1 1969 C ss 5.0 USSR box; directions
C-Thru PS-79
1970 C pl 16.0 USA Proportional Scale, from the estate of Johnny Craig, noted comic book artist
Fearns Calculators A13
1970 C pl 12.0 UK Log-Log is single helical 3-turn scale; made for Industrial Scientific Instruments, Montreal; conversion factors on back
Reiss 3223 Progress 1971 L Al 10.0 EGER very nice rule; made in E.Germany; 771 on stock = July 1971; multi-line cursor; case has been taped together
C-Thru S-96
1973 C pl 15.0 USA from my high school years