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 |