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Calculating Machines and Calculating Aids...
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Contex A Adding Machine, c. 1955...
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Fuller's Computing Telegraph and Palmer's Poc...
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2 Adix Adding Machines...
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Curta Type I Calculator, 1952...
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Calculating Machines and Calculating Aids...
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Madas Calculating Machine, 1913...
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Omega Art-Nouveau Calculating Machine, 1904...
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Calculating Discs and Calculating Aids...
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3 Calculating Discs...
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8 Calculating Clocks and Discs...
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Slide Rules and Arithmetic Tables...
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3 Sectors and a Rule...
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Rare Saxonia 3 (Rolltop) Calculator, 1910...
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Calculating Machines and Calculating Aids...
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Calculator Eclair, c. 1920...
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Burkhardt Arithmometer, c. 1902...
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Calculating Machines and Calculating Aids...
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6 Disc Adders...
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Magic Wand by Max Levi, c. 1920...
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Curta Type II Calculator, 1966...
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2 Comptometer Calculating Machines and a Shar...
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Calculating Machines and Calculating Aids...
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The Brical - Money Calculating Machine, c. 19...
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Hart’s Mercantile Computing Machine, 1878...
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Diera Calculating Machine, 1911 onwards...
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2 Adix Adding Machines...
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3 Calculating Drums...
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2 Adix Adding Machines...
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French Specialized Tachylemme Calculator, 187...
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Rare Tate's Arithmometer, c. 1900...
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4 Calculating Machines...
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8 Adders and Calculating Aids...
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3 Stepped-Drum Calculating Machines...
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Curta Type II Calculator, 1956...
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Addimult Multor, c. 1953...
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Replica of Wilhelm Schickard's Mechanical Cal...
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Peerless Calculating Machine, c. 1908...
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Microcalcolatore tipo 2A, 1952...
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Large Collection of Mathematical Literature a...
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Edwin Thacher's Cylindrical Slide Rule Calcul...
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Adix and Certa Adding Machines...
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Curta Type I Calculator, 1950...
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4 Mechanical Calculating Machines...
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Herrmann's Rechenknecht, 1875...
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The "Small" Pocket Calculator, c. 1915...
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8 Calculating Clocks...
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4 Early Arithmetic Tools...
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The Millionaire Calculating Machine, c. 1900...
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4 Toothed-Bar and Chain Adders...
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2 Machine Running Times Quick Calculators...
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The Adder English Adding Machine, c. 1915...
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Thomas de Colmar Arithmomètre, c. 1876...
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Le Recta Adding Machine, c. 1912...
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Conto Model C Calculating Machine, 1912 ...
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Twin Marchant Calculating Machine, c. 1942...
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Triumphator Type I Calculator, c. 1914...
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Collection of 9 Abaci...
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Adimul Calculating Machine, 1913 onwards...
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Special Calculators for Various Professions...
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4 Spoked-Wheel Calculating Machines and a Dem...
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Hines Patent Calculator with 3 Wheels, 1905 o...
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Kuli Calculating Machine, 1913 onwards...
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Peerless Baby Calculating Machine, c. 1922...
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Archimedes Junior Calculator, 1925...
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Rapid Rare Adding Machine, c. 1918...
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Report and Certa Adding Machines...
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Alpina Calculating Machine, 1961...
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Hugo Bunzel Vienna Arithmometer, c. 1905...
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Multifix E1 Calculating Machine, c. 1955...
