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Slide rule for exchange of weights and measures

Slide rule for exchange of weights and measures

1815

Thacher's cylindrical slide rule, 1884

Thacher's cylindrical slide rule, 1884

1884

"Unique" 10 inch slide rule

"Unique" 10 inch slide rule

1920-1950

Binks' burettes and a Wollaston slide rule

Binks' burettes and a Wollaston slide rule

1814

Wollaston's chemical slide rule, c 1820.

Wollaston's chemical slide rule, c 1820.

1820

Slide rule part

Slide rule part

3 radiation slide rules by the Light Military Electronics Dept.

3 radiation slide rules by the Light Military Electronics Dept.

Improved Perry calculating slide rule

Improved Perry calculating slide rule

1910-1911

M.T. slide rule for problems of vehicular movement

M.T. slide rule for problems of vehicular movement

Improved Perry calculating slide rule, 10 inch; in case, scale of inches and fiftieths on bevel edge, special cursor of aluminium and glass with pointer attached for rapidly calculating engine diagrams, etc., cursor has broken hair line for easy reading, double faced with celluloid log-log scales along the whole length and bottom edges; printed list of constants etc., pasted at back

Perry calculating slide rule and case

1910-1911

George W. Richardson's Direct Reading Slide Rule, made in Chicago, with instruction booklet, copyright 1909, in cardboard box

George W. Richardson's Direct Reading Slide Rule

1909-1916

Collection of 14 slide rules as used at the RAE, plus a cursor and 10 related instuction books.

Collection of 14 slide rules as used at the RAE

Slide rule, in cased hydrometer set

Slide rule

Slide rule, wood

Slide rule

Slide rule of wood and ivory, made by Dring and Fage of London

Slide rule of wood and ivory

Slide rule, in case, by Dring and Fage, 145 Strand, London, England, 1840-1920

Slide rule

Slide rule, Richmond milk scale, wood, by Baird and Tatlock of London, late 19th century

Slide rule

1871-1900

1 Boxwood meteorologists slide rule, stamped "Cary * London" one slide, 13 1/4" x 15/16"

One boxwood meteorologists slide rule, stamped "Cary * London"

1790-1819

1 Boxwood actuaries slide rule, two slides stamped "Cary * London" 12" x 7/8"

One boxwood actuaries slide rule, two slides stamped "Cary * London"

1790-1819