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La Pythagore, late 19th Century...
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Calculating Aids and Toys...
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13 Embossed Copper Counter Tokens, c. 1650...
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Facit CA1-13 Mathematikus, c. 1965...
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Rare "Calculating Boy" Tin Toy, c. 1913...
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Rare Calculating Robot Answer Game, c. 1963...
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13 Adding Pens and Calculators...
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Austrian Twin Arithmometer with Double-Slidin...
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2 Brunsviga Spoked-Wheel Calculating Machines...
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Calculator Game (Rechenspielapparat), 1921...
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A. Sonnenschein's Improved Arithmometer, late...
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Rare "Austria" (Peerless I) Arithmometer, 192...
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Rare Bunzel-Delton Brass Stepped-Drum Calcula...
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Austria Model IIb Arithmometer, c. 1909...
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Arithmomètre Payen, c. 1885...
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Millionär Calculating Machine, 1893 onwards...
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Curta Type I Calculator, 1959...
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Curta Type 1 Demonstration Model, c. 1994...
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Rare "Gräber's Arithmometer", c. 1904...
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Working Replica of the Six-Digit "Pascaline C...
