Thacher's cylindrical slide rule, 1884

1884 in New York state and United States

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Science Museum Group Collection
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Thacher's cylindrical slide rule, in fitted mahogany box (no lock), made by Keuffel and Esser, model no. 4012, serial no. 3412, plates engraved by W.F. Stanley, with W.F. Stanley instruction booklet (1884)


Object Number:
slide rules
W F Stanley and Company Limited

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