»"Thomas' Arithmomètre", c. 1876«
Large model of Thomas de Colmar's calculator of 1820, marked: "Arithmomètre - no. 2166". Designed, patented and manufactured by Thomas de Colmar, 44 rue de Chateaudun, Paris. With 8, 9 and 16 digits, brass mechanism, with engraved console and original lacquer, in oak case, size: 23 x 7 x 3 ½ in. - A true milestone in the history of calculating machines!
Estimate: € 2,500/3,500
US$ 3,000/4,100
Reserve: € 1,600/ US$ 1,890
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