Slide rule by Robert Bissaker

Mathematics

1654

Compendium rule signed Humfrey Cole

Mathematics

1574

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

1810-1820

Parallel rule in bakelite signed `Lund's Rule

Mathematics

1922-1927

Slide rule

Mathematics

1800-1860

Circular slide rule, 1660-1680.

Mathematics

1660-1680

2-Foot Rule

Mathematics

1855-1865

Ivory rule

Mathematics

Ivory gunners' rule

Mathematics

1800-1850

Artillery slide rule

Mathematics

Slide Rule

Mathematics

1903-1920

Folding Rule

Mathematics

1910

Carpenter's slide rule

Mathematics

1861-1910

steel rule

Mathematics

1900

Farmar's profit-calculating rule

Mathematics

Slide rule

Mathematics

Silvered brass circular slide rule

Mathematics

1876

Thornton model 121 slide rule

Mathematics

1960-1966

Studio 01068 Aristo slide rule 20-Inch

Mathematics

1970-1975

Slide Rule

Mathematics

1960-1965

Slide rule

Mathematics

Folding rule

Mathematics

1875-1885

Folding Rule

Mathematics

1885-1895

Parallel Rule

Mathematics

1820-1830

Slide rule

Mathematics

1800-1805

Folding rule

Mathematics

1885-1895

Steel Rule

Mathematics

1900-1948

Folding Rule

Mathematics

1905-1945

Fathom Rule

Mathematics

1880-1900

Slide rule

Mathematics

Slide rule

Mathematics

1791-1859

Parallel rule

Mathematics

1876

Musketry rule with slider

Mathematics

1917-1925

Tarrant Hydraulic Slide Rule

Mathematics

1960-1962

Donkin slide rule; wood

Mathematics

Brass rule

Mathematics

1600-1610

Slide rule

Mathematics

1949

Circular slide rule

Mathematics

1918-1921

Slide Rule

Mathematics

1900-1940

Railway slide rule

Mathematics

1928

Slide rule

Mathematics

Slide rule

Mathematics

Folding Rule

Mathematics

1915-1925

Slide rule

Mathematics

Slide rule part

Mathematics

Parallel rule

Mathematics

1876