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"Adix", 1903...
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"Comptometer Mod. 1, 1887...
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"Kuli" Calculating Machine, 1909...
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"Curta Type I", 1948...
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Brunsviga Mod. 14 Twin Calculator (D13-R-1), ...
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"Stephenson Adder", 1910...
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3 Calculating Machines...
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Thales Model A Calculating Machine, c. 1915...
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Professor Fuller's Slide Rule Calculator, c. ...
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Olympia CD-400 Desktop Calculator, 1970...
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Walther ETR-1, 1969...
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2 Pocket Adding Machines...
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Gem Adding Machine ("The Aristocrat of Adding...
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Unusual Cutaway Model of a Calculator Mechani...
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"Casio CMD-40", c. 1994...
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"The Brical – Money Calculating Machine", c. ...
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2 Pocket Watch Calculators...
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Gordon's Addometer, c. 1875...
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"Adix", 1903...
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"Thomas' Arithmomètre", c. 1870...
