7.12 Significant Rules

This list contains those rules that I feel are the more significant rules of the collection and have become some of my favorites, either because of their age, their historical significance, their complexity, their condition, or combinations of these qualities.

Maker Model Year Type Mat Length
Jacob and Halse Sector 1809 L iv 5.0
Davies Routledge Engineer
1825 L wd 11.0
noID Comparative Rule
1880 L wd 9.0
Stanley Fuller’s Calculator Model No. 1 1909 H wd 500.0
K&E 4053-2 1910-1914 L wd 8.0
K&E 4092 1913 L wd 10.0
K&E 4133 1913-1922 L wd 8.0
K&E 4083
1916 L wd 16.0
Gilson Midget 1919 C Al 12.0
Nestler 1a
1920 L wd 10.0
K&E 4035 1922 L wd 8.0
K&E 4092-3 1923 L wd 10.0
KHH Mannheim Multiphase Adjustable 1924 L wd 10.0
Nestler 41 Pocket
1925 L wd 4.0
Nestler 24
1930 L wd 20.0
Gilson Atlas
1931 S Al 468.0
K&E 4093-3 1933 L wd 10.0
K&E Mystery 1934 L wd 10.0
HH Universum 1935-1942 L wd 7.5
K&E N4092-5 1936 L wd 20.0
K&E 4081-3 1937 L wd 10.0
Gilson Midget
1940 C Al 12.0
Baetzmann Spring Calculator 1941 L wd 2.0
Fowler Long-Scale (RX) 1943 C ss 30.0
Pickett 1 1945-46 L Mg 10.0
American Blueprint Military 1948-1957 L wd 10.0
Otis King Model L 1949 H ss 66.0
K&E N4096 1950 L wd 20.0
Pickett 600 1950 L Mg 5.0
Hemmi 258 1951 L wd 10.0
K&E 4094 1951 L wd 10.0
Hemmi 255 1952 L wd 10.0
Hemmi 258 1952 L wd 10.0
Hemmi 258 1953 L wd 10.0
K&E 4081-3 1955 L wd 10.0
Hemmi 257 1956 L wd 10.0
Faber-Castell 2/82 1957 L pl 10.0
Hemmi 258 1957 L wd 10.0
Hemmi 258 1958 L wd 10.0
Pickett 4-ES 1958 L Al 10.0
Pickett N4-ES 1959 L Al 10.0
Concise 380
1959-1966 C pl 2.0
Aristo 1067U 1961 L pl 20.0
Pickett N-515-T 1962-65 L Al 10.0
Pickett N-515-T 1962-65 L Al 10.0
Dietzgen 1734
1963 L pl 10.0
Hemmi 258 1963 L wd 10.0
Pickett N600-ES
1964 L Al 5.0
Pickett N600-ES
1964 L Al 5.0
Boykin RotaRule Model 510 1965 S pl 50.0
Hemmi Pocket Versalog 1965 L wd 5.0
Otis King Model K 1965 H ss 66.0
Hemmi 258 1966 L wd 10.0
Hemmi 258 1967 L wd 10.0
K&E 68-1130 1967 L pl 5.0
Thornton P221
1967 L pl 10.0
Hemmi Pocket Versalog 1968 L wd 5.0
K&E 68-1100 1969 L pl 10.0
Faber-Castell 2/83N 1970 L pl 10.0
Hemmi 258 1971 L wd 10.0
Dietzgen 1776 1972 L pl 5.0
Faber-Castell 62/83 1972 L pl 5.0
Hemmi 258 1972 L wd 10.0