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Lot 0029
Thacher's Calculating Instrument, 1881
Model 1740, American cylindrical slide-rule, manufactured by Keuffel & Esser, New York, serial no. 435, with original manual (dated 1884) in mahogany case. An excellent collector's item.

Rechenwalze "Edwin Thacher", 1881
Modell 1740, große amerikanische Rechentrommel, patentiert von Edwin Thacher am 1. November 1881. Hersteller: "Keuffel & Esser, New York". Serien-Nr. 435. Mit Anleitung (datiert 1884) in Mahagonikasten. - Ein Top-Sammlungsstück!

Start Price: EUR 350

Condition

(2-3/2-3)

Buyer's Premium

  • 24.3%

Thacher's Calculating Instrument, 1881

Estimate €700 - €900Nov 11, 2017