图录号：
11
拍品名称：
3 Calculators
拍品描述：
1) TIM, serial no. 14951, by Ludwig Spitz, Berlin, sliders, with 8, 7 and 12 digits, c. 1910, working. – 2) Hamann Automat Modell V, c. 1940, electric motor driven, with 9, 8 and 16 digits, untested. – And: 3) Trinks-Brunsviga, Grimme, Natalis & Co., Braunschweig. no. 29911, with 9, 8 and 13 digits, spoked-wheel, c. 1920, working.
品相: (3/–)
品相: (3/–)