"Boucher" circular calculator, by Stanley, (glass

Made:: 1880-1890 in Holborn

maker:: William Ford Stanley

"Boucher" circular calculator, by Stanley, Great Turnstile, London

Details

Category:: Mathematics

Object Number:: 1908-138

Materials:: steel, glass and paper

Measurements:: overall: 15 x 60 x 75 mm

type:: circular slide rule

credit:: J.C. Stevens Auction House

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"Boucher" circular calculator, by Stanley, (glass

Details

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