Slide rule by Robert Bissaker

Mathematics

1654

Compendium rule signed Humfrey Cole

Mathematics

1574

2-Foot Rule

Mathematics

1855-1865

Folding Rule

Mathematics

1910

Carpenter's slide rule

Mathematics

1861-1910

British Thornton Slide Rule

Mathematics

1967-1975

Slide rule, "System Rietz", by Sun Hemmi, Japan

Mathematics

Slide rule for exchange of weights and measures

Mathematics

1815

Calculating rule by Lenoir in centimetres with conversions

Mathematics

1800-1825

Slide rule

Mathematics

NASA 136MC Ambiguity Resolver circular slide rule 12-inch

Mathematics

1965-1970

Rolling parallel rule by Cooke

Mathematics

1922-1950

Slide rule

Mathematics

1800-1860

Allbrit [rule-form] linear planimeter

Mathematics

1974-1976

Ullage slide rule, 1759-1776.

Mathematics

1759-1776

Slide Rule

Mathematics

1960-1965

Slide rule

Mathematics

Folding Rule

Mathematics

1885-1895

Folding Rule

Mathematics

1915-1925

Navigation slide rule, c.1800.

Mathematics

1780-1800

Circular slide rule, 1660-1680.

Mathematics

1660-1680

Water Flow Slide Rule

Mathematics

1965-1975

Circular slide rule

Mathematics

Thompson's slide rule

Mathematics

1833

Parallel rule

Mathematics

1876

Military rule

Mathematics

Barnard's Co-ordinate spiral slide rule

Mathematics

1909

'Musigraph 100', slide rule for music theory

Mathematics

1985

Slide rule

Mathematics

1810-1820

Folding rule

Mathematics

1885-1895

Ivory rule

Mathematics

Folding rule

Mathematics

1875-1885

Casartelli Slide Rule

Mathematics

1865-1875

Parallel Rule

Mathematics

1820-1830

Slide rule

Mathematics

1800-1805

Tarrant Hydraulic Slide Rule

Mathematics

1960-1962

Donkin slide rule; wood

Mathematics

Slide rule

Mathematics

Steel Rule

Mathematics

1900-1948

Railway slide rule

Mathematics

1928

Slide Rule

Mathematics

1903-1920

Folding Rule

Mathematics

1905-1945

Parallel rule in bakelite signed `Lund's Rule

Mathematics

1922-1927

Fathom Rule

Mathematics

1880-1900

Slide rule

Mathematics

Parallel rule

Mathematics

1876

Slide rule

Mathematics

1791-1859

Parallel rule

Mathematics

1876

steel rule

Mathematics

1900

Parallel rule

Mathematics

1876