4.15 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.

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: 27.

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
1825 L wd 11.0 UK Maker is T. Davies, Gravel Lane, Southwark; very nice craftsmanship; references to pre-imperial units
Stanley Fuller’s Calculator Model No. 1 1909 H wd 500.0 UK Original wooden box, with original instructions and flyers; nice condition; from bank in New Jersey
KHH Mannheim Multiphase Adjustable 1924 L wd 10.0 GER Post 1452; very early version; maker Koch, Huxhold & Hannemann; Made in Germany in well; date mark 24 on back; fine leather case, stamped Posts Multiphase Slide Rule; L scale right to left; Slide Rule Data Slips on back
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.
HH Universum 1935-1942 L wd 7.5 GER HH Universum rule; green felt-line hinged case with clasp; 3-hairline cursor; great condition; original instruction sheet
Baetzmann Spring Calculator 1941 L wd 2.0 USA Spring Load Calculations slide rule; large format 17 x 2.5 x 0.75 in^3; 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
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
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
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
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 JPN from my high school years