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"Millionär", 1895...
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"Adsumudi", 1907...
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"Burroughs Sensimatic Series 300", c. 1955...
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4 Electrical Calculators, c. 1925...
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6 Spokewheel Calculating Machines...
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"Robotron Mod. 314", 1972...
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Olympia CD400 Desktop Calculator, 1970...
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6 Spokewheel Calculating Machines...
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11 Electronic Calculating Machines...
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"Peerless", 1904‘’...
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Bürk's "Kollektor" Adding Machine, c. 1910...
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"Peerless Baby", 1904...
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"Madas", 1913...
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"Mercedes/Gauss" Calculator, 1905...
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4 Adding Machines, c. 1920...
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9 Mechanical Calculating Machines, 1935 onwar...
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Star Adding Machine, 1922...
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"Anita MK8", 1961...
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Texal Instruments SR-60A, 1977...
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"Saxonia" (Rolltop), 1910...
