Thatcher's calculating instrument, brass mounted wooden drum calculating...

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Sold Date 2026 full date locked

Source BRUNK AUCTIONS, Asheville, NC, USA

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Description

Thatcher's calculating instrument, brass mounted wooden drum calculating multiplication, division, proportion and powers, last patent date 1920, Keuffel & Esser, No. 4012, with original instruction manual, in fitted jointed mahogany case. Excellent condition with original label, some spotting of surface; case with stains and scuffs. The Collection of the Late...

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