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"The Millionaire" Calculating Machine, 1911...
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Curta Type I Calculator, 1964...
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2 Comptometers...
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TIM Mod. 1 (Unitas), 1907...
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6 Spoke-Wheel Calculating Machines...
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Adix Mod. 2, 1903...
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Mercedes-Euklid Electrical Calculating Machin...
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5 Mechanical Calculators...
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3 Mechanical Calculating Machines...
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4 Electric Calculating Machines, c. 1940–60...
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4 Electric Calculating Machines...
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3 American Adding Machines...
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2 Comptometers...
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6 Mechanical Calculators...
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6 Mechanical Calculators...
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Burroughs Adding Machine Company, Detroit, Mi...
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2 Small Counters...
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Web Adder and Golden Gem...
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American Disc Adder, c. 1870–90...
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"Palmer's Pocket Scale", 1844...
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3 Calculating Watches and 1 Circular Slide Ru...
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2 Watch-form Calculators...
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7 Interesting Office Antiques...
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4 Watch-form Calculators...
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"Curta Type II" (Grey), 1959...
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"Bunzel-Delton No. 5" Calculator, c. 1908...
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6 Mechanical Calculators...
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Calculating Machines and Tools...
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"Laytons Improved Arithmometer", 1911...
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5 Mechanical Calculators...
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Orga-Constant Calculating Machine, c. 1924...
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3 Mechanical Calculating Machines with Printe...
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"Peerless" Calculating Machine, 1904...
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2 "TIM" Calculating Machines, c. 1910...
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6 Spoked-Wheel Calculators...
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2 Early Electronic Calculators...
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4 Electric Calculating Machines with Printers...
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2 Early Electronic Calculators with Nixie-Tub...
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4 Electronic Calculators...
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Sharp Compet 623B Desktop Calculator, c. 1975...
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7 Electronical Calculating Machines...
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Slide Rules and Calculating Aids...
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6 Mechanical Calculators...
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2 Brunsviga Spoked-Wheel Calculating Machines...
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Collection of Electronic Table and Pocket Cal...
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"The Millionaire" Calculating Machine, 1918...
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"Arithmomètre Payen", c. 1895...
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Large Collection of Calculating Devices...
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"Saxonia 1" Calculator, 1895 onwards...
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Rare Adder with Printer, c. 1925...
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Adix, Comptator und SuN...
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Mechanical Accountant Duplex Model B, c. 1910...
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4 Mechanical American Calculating Machines...
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"Curta Type II" (Grey), 1965...
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2 Early Electronic Calculators...
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Calculating Machines and Tools...
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"The Millionaire" Calculating Machine, 1895...
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"Archimedes" Mod. A Arithmometer, 1906...
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9 Abaci...
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Saxonia Calculator, 1895...
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2 Adding Machines...
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American Double-Mechanism Disk Adder, c. 1870...
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5 Small Calculating Aids...
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4 American Mechanical Calculating Machines...
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"Certa" Adding Machine, 1931...
