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Thatcher's Calculating Instrument

Auction:
2345
Lot:
1
Sold for:
$940

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Auction:
Science, Technology & Clocks - 2345
Location:
Boston
Date / Time :
July 29, 2006 10:00AM

Description:

Thatcher's Calculating Instrument, by Keuffel & Esser Co., New York, No. 4012 / 4142, patd. by Edwin Thatcher 1881, with outer paper-covered scales on revolving brass rings, and 19-inch sliding inner cylinder, on mahogany base with paper instruction label, lg. 21 1/2 in., in mahogany case.
Estimate $1,000-1,500

Keywords

Edwin Thatcher, Keuffel & Esser Co., Keuffel and Esser, Mahogany, Slide rule

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