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THATCHER S CALCULATING INSTRUMENT Retailed by Keuffle Esser cylindrical slide
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THATCHER S CALCULATING INSTRUMENT Retailed by Keuffle Esser cylindrical slide
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Verified Auction Record

THATCHER'S CALCULATING INSTRUMENT: Retailed by Keuffle & Esser, cylindrical...

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Sold For $___ Subscribe to reveal
Sold Date 2026 full date locked
Source BURCHARD GALLERIES, Inc., St. Petersburg, FL, USA
Adjusted Price $___
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Description

THATCHER'S CALCULATING INSTRUMENT: Retailed by Keuffle & Esser, cylindrical slide rule patented by Edwin Thatcher, mahogany base and handles, original instructions on base. Overall measures 6'' h. x 22''