6.2 Oldest Rules

The 25 oldest rules in the collection, listed according to the Year variable in the database. For this list, the earliest year is used for rules in which only a date range or educated guess (circa) is known.

Maker Model Year Type Mat L0 Lx
Jacob and Halse Sector 1809 L iv 5 12
noID Gunter Rule
1820 L wd 12 24
Davies Routledge Engineer
1840 L wd 11 12
Palmer Palmer’s Computing Scale 1843 C pp 27 11
Palmer Palmer’s Pocket Scale 1845 C pp 10 3
Sikes Comparative Rule
1880 L wd 9 9
Dring and Fage Inland Revenue Rule 1883-1902 L wd 12 24
Faber 360 1897 L wd 10 10
K&E American/Favorite
1898 L wd 10 10
Faber 365 1898-1900 L wd 10 10
E.S.A. London Harrow Mark Reducer 1898-1925 L wd 11 36
Faber 367 1899-1902 L wd 10 10
K&E 4041
1900 L wd 10 10
K&E American
1900 L wd 10 10
K&E 4054 1900-1914 L wd 10 10
K&E 4041
1901 L wd 10 10
Dietzgen 1765 1902-1912 L wd 10 10
Faber 350 1903 L wd 10 10
Dietzgen 1762-B
1904 L wd 10 10
Dietzgen 1762-B
1905 L wd 10 10
Kolesch 2574 Mannheim 1905-1911 L wd 10 10
Kolesch 2713 Stadia 1905-1911 L wd 10 10
Kolesch 2832 Triplex 1905-1911 L wd 10 10
Stanley Fuller’s Calculator Model No. 1 1909 H wd 500 12
K&E 4056 1909-1914 L wd 10 10