LOT 3
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Thomas' Arithmom 232 tre, c. 1870
作品估价：EUR 1,800
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成交状态：待拍
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25%
图录号：
3
拍品名称：
Thomas' Arithmom 232 tre, c. 1870
拍品描述：
No. 1345, small model of Thomas de Colmar's calculator of 1820, marked: "Thomas de Colmar, à Paris, Inventeur", with 6 input sliders, 7-digit revolution counter and 12-digit result mechanism, brass housing, steel and brass mechanism, in ebony-veneered case with brass "Arithmètre" inlay on lid, 18 ½ x 7 x 4 in., working well. – A true milestone in the history of calculating machines.
品相: (3+/2–3)
品相: (3+/2–3)