6.4 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 | L0 | Lx | |
|---|---|---|---|---|---|---|---|
| Jacob and Halse | Sector | 1809 | L | iv | 5.0 | 12.0 | |
| noID | Gunter Rule |
|
1820 | L | wd | 12.0 | 24.0 |
| Davies | Routledge Engineer |
|
1840 | L | wd | 11.0 | 12.0 |
| Palmer | Palmer’s Computing Scale | 1843 | C | pp | 27.0 | 11.0 | |
| Palmer | Palmer’s Pocket Scale | 1845 | C | pp | 10.0 | 3.0 | |
| Sikes | Comparative Rule |
|
1880 | L | wd | 9.0 | 9.0 |
| Dring and Fage | Inland Revenue Rule | 1883-1902 | L | wd | 12.0 | 24.0 | |
| Faber | 360 | 1897 | L | wd | 10.0 | 10.0 | |
| K&E | American/Favorite |
|
1898 | L | wd | 10.0 | 10.0 |
| E.S.A. London | Harrow Mark Reducer | 1898-1925 | L | wd | 11.0 | 36.0 | |
| K&E | American |
|
1900 | L | wd | 10.0 | 10.0 |
| Stanley | Fuller’s Calculator Model No. 1 | 1909 | H | wd | 500.0 | 12.0 | |
| K&E | 4053-2 | 1910-1914 | L | wd | 8.0 | 8.0 | |
| K&E | 4092 | 1913 | L | wd | 10.0 | 10.0 | |
| K&E | 4133 | 1913-1922 | L | wd | 8.0 | 8.0 | |
| K&E | 4100 | 1915-1922 | L | wd | 10.0 | 10.0 | |
| K&E | 4083 |
|
1916 | L | wd | 16.0 | 16.0 |
| Richardson | Model of 1917 | 1917-1918 | L | wd | 17.0 | 18.0 | |
| Richardson | GE Analizer |
|
1918 | L | wd | 4.0 | 18.0 |
| Gilson | Midget | 1919 | C | Al | 12.0 | 4.0 | |
| Nestler | 1a |
|
1920 | L | wd | 10.0 | 10.0 |
| K&E | 4035 | 1922 | L | wd | 8.0 | 8.0 | |
| K&E | 4092-3 | 1923 | L | wd | 10.0 | 10.0 | |
| K&E | 4092-5 | 1923 | L | wd | 20.0 | 20.0 | |
| KHH | Mannheim Multiphase Adjustable | 1924 | L | wd | 10.0 | 10.0 | |
| Nestler | 33 Chemiker | 1924-1933 | L | wd | 10.0 | 10.0 | |
| Nestler | 41 Pocket |
|
1925 | L | wd | 4.0 | 4.0 |
| KHH | Mannheim Multiphase Adjustable |
|
1925-1930 | L | wd | 10.0 | 10.0 |
| K&E | N4053-3F | 1928 | L | wd | 10.0 | 10.0 | |
| K&E | 4093-3 | 1930 | L | wd | 10.0 | 10.0 | |
| Nestler | 24 |
|
1930 | L | wd | 20.0 | 20.0 |
| Gilson | Atlas |
|
1931 | S | Al | 468.0 | 8.0 |
| K&E | 4093-3 | 1933 | L | wd | 10.0 | 10.0 | |
| K&E | Mystery | 1933 | L | wd | 10.0 | 10.0 | |
| K&E | Mystery | 1934 | L | wd | 10.0 | 10.0 | |
| K&E | N4096 | 1935 | L | wd | 20.0 | 20.0 | |
| K&E | N4092-5 | 1936 | L | wd | 20.0 | 20.0 | |
| Hemmi | 153 | 1936-1940 | L | wd | 10.0 | 10.0 | |
| K&E | 4081-3 | 1937 | L | wd | 10.0 | 10.0 | |
| UIF Shanghai | 4083-3 | 1939-1947 | L | wd | 10.0 | 10.0 | |
| Gilson | Midget |
|
1940 | C | Al | 12.0 | 4.0 |
| K&E | 4110 | 1940 | L | wd | 6.5 | 15.0 | |
| Baetzmann | Spring Calculator | 1941 | L | wd | 2.0 | 17.0 | |
| Fowler | Long-Scale (RX) | 1943 | C | ss | 30.0 | 3.0 | |
| K&E | N4133 | 1944 | L | wd | 8.0 | 8.0 | |
| HH | Universum | 1945-1955 | L | wd | 7.5 | 7.5 | |
| Pickett | 1 | 1945-46 | L | Mg | 10.0 | 10.0 | |
| American Blueprint | Military | 1948-1957 | L | wd | 10.0 | 12.0 | |
| Otis King | Model L | 1949 | H | ss | 66.0 | 6.0 | |
| Pickett | 600 | 1950 | L | Mg | 5.0 | 5.0 | |
| Felsenthal | FAA-95 | 1950-1955 | C | pl | 16.0 | 8.0 | |
| Hemmi | 258 | 1951 | L | bb | 10.0 | 10.0 | |
| K&E | 4094 | 1951 | L | wd | 10.0 | 10.0 | |
| Hemmi | 255 | 1952 | L | bb | 10.0 | 10.0 | |
| Hemmi | 258 | 1952 | L | bb | 10.0 | 10.0 | |
| Hemmi | 258 | 1953 | L | bb | 10.0 | 10.0 | |
| K&E | 4081-3 | 1955 | L | wd | 10.0 | 10.0 | |
| Hemmi | 257 | 1956 | L | bb | 10.0 | 10.0 | |
| K&E | 4081-5 | 1956 | L | wd | 20.0 | 20.0 | |
| Faber-Castell | 2/82 | 1957 | L | pl | 10.0 | 10.0 | |
| Hemmi | 258 | 1957 | L | bb | 10.0 | 10.0 | |
| Hemmi | 258 | 1958 | L | bb | 10.0 | 10.0 | |
| Pickett | 4-ES | 1958 | L | Al | 10.0 | 10.0 | |
| Pickett | N-515-T | 1958-62 | L | Al | 10.0 | 10.0 | |
| Pickett | N-515-T | 1958-62 | L | Al | 10.0 | 10.0 | |
| Pickett | N4-ES | 1959 | L | Al | 10.0 | 10.0 | |
| Concise | 380 |
|
1959-1966 | C | pl | 2.0 | 4.0 |
| Aristo | 1067U | 1961 | L | pl | 20.0 | 20.0 | |
| Dietzgen | 1734 |
|
1963 | L | wd | 10.0 | 10.0 |
| Hemmi | 258 | 1963 | L | bb | 10.0 | 10.0 | |
| Pickett | N600-ES |
|
1964 | L | Al | 5.0 | 5.0 |
| Pickett | N600-ES |
|
1964 | L | Al | 5.0 | 5.0 |
| Pickett | N4-ES | 1964-1975 | L | Al | 10.0 | 10.0 | |
| Boykin | RotaRule Model 510 | 1965 | S | pl | 50.0 | 6.0 | |
| Hemmi | Pocket Versalog | 1965 | L | bb | 5.0 | 5.0 | |
| Otis King | Model K | 1965 | H | ss | 66.0 | 6.0 | |
| Aristo | 969 | 1966 | L | pl | 10.0 | 10.0 | |
| Pickett | N3p-T | 1966 | L | Al | 5.0 | 5.0 | |
| Hemmi | 258 | 1967 | L | bb | 10.0 | 10.0 | |
| K&E | 68-1130 | 1967 | L | pl | 5.0 | 5.0 | |
| K&E | 68-1130 | 1967 | L | pl | 5.0 | 5.0 | |
| Thornton | P221 |
|
1967 | L | pl | 10.0 | 10.0 |
| Hemmi | Pocket Versalog | 1968 | L | bb | 5.0 | 5.0 | |
| Hemmi | 258 | 1969 | L | bb | 10.0 | 10.0 | |
| K&E | 68-1100 | 1969 | L | pl | 10.0 | 10.0 | |
| Aristo | 958 | 1970 | L | pl | 10.0 | 10.0 | |
| Faber-Castell | 2/83N | 1970 | L | pl | 10.0 | 10.0 | |
| Hemmi | 258 | 1971 | L | bb | 10.0 | 10.0 | |
| Dietzgen | 1776 | 1972 | L | pl | 5.0 | 5.0 | |
| Faber-Castell | 62/83 | 1972 | L | pl | 5.0 | 5.0 | |
| Hemmi | 258 | 1972 | L | bb | 10.0 | 10.0 |