6.8 Pocket Rules

The list below includes all slide rules in the collection with overall longest dimension less than or equal to 6 inches. Both the single-decade length (L0) and the overall largest dimension (Lx) of the slide rule are provided in the table. Approximately 22% of the slide rules in the collection are pocket rules.

Maker Model Year Type Mat L0 Lx
Otis King Model L 1949 H ss 66 6
Boykin RotaRule Model 510 1965 S pl 50 6
Otis King Model K 1965 H ss 66 6
C-Thru PS-79
1970 C pl 16 6
C-Thru S-96
1973 C pl 15 6
Richardson Direct Reading Pocket
1912 L ss 5 5
Richardson Direct Reading Pocket
1912 L ss 5 5
KHH Pocket Rule 1919 L wd 5 5
Faber-Castell 379 1923 L wd 5 5
K&E 4088-1 1923 L wd 5 5
MARC promo
1930 L pl 5 5
MARC promo
1930 L pl 5 5
Lawrence 10-C 1935-1938 L wd 5 5
K&E 4097D 1944 L pl 5 5
K&E 4098A 1944 L wd 5 5
Charvoz-Roos PSR-105 1944-45 L wd 5 5
Charvoz-Roos SR-108 1945 L wd 5 5
Unique 5L/L
1945 L wd 5 5
Goodyear promo
1950 L pp 5 5
Pickett 600 1950 L Mg 5 5
Felsenthal Logarithmic Calculator FF-6 1951 C pl 12 5
Blundell Rules Limited Radiac No. 1 1952-1956 C pl 2 5
Faber-Castell 67/54R 1953-1956 L wd 5 5
Pickett 20-BASIC
1955 L Al 5 5
K&E 4097C 1957 L wd 5 5
K&E 4181-1 1957 L pl 5 5
K&E 4181-1 1957 L pl 5 5
Pickett N1006-ES 1958-62 L Al 5 5
Pickett 600-ES 1959 L Al 5 5
Rietz UTO 601
1960 L pl 5 5
Rietz UTO 601
1960 L pl 5 5
Pickett N200-T Trig 1962 L Al 5 5
Pickett N600-T 1962 L Al 5 5
Pickett N600-ES
1964 L Al 5 5
Pickett N600-ES
1964 L Al 5 5
Hemmi Pocket Versalog 1965 L bb 5 5
Alco P266
1966 L ss 5 5
Pickett N3p-T 1966 L Al 5 5
K&E 68-1130 1967 L pl 5 5
K&E 68-1130 1967 L pl 5 5
Hemmi Pocket Versalog 1968 L bb 5 5
Fearns Calculators A13
1970 C pl 12 5
Sterling 587
1970 L pl 5 5
noID noID
1970 L pl 5 5
Dietzgen 1771 1970-1972 L pl 5 5
Aristo 867U 1972 L pl 5 5
Dietzgen 1776 1972 L pl 5 5
Faber-Castell 62/83 1972 L pl 5 5
Sterling 587 1972 L pl 5 5
Gilson Midget 1919 C Al 12 4
Nestler 41 Pocket
1925 L wd 4 4
Hemmi 32 1936-43 L bb 4 4
Gilson Midget
1940 C Al 12 4
Felsenthal D-4 1944 C pl 12 4
Hemmi 32 1947-49 L bb 4 4
Concise 270
1955 C pl 12 4
Hemmi 32 1957 L bb 4 4
Concise 380
1959-1966 C pl 2 4
Pickett 101-C 1962-1964 C Al 12 4
Hemmi 30 1964 L bb 4 4
Concise 28
1970 C pl 8 4
Palmer Palmer’s Pocket Scale 1845 C pp 10 3
Fowler Long-Scale (RX) 1943 C ss 30 3
Concise 600ST 1969 C pl 8 3
MATSKU KL-1 1969 C ss 5 2