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World's 1st Mechanical Calculating Machine by...
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Dr. Roth Calculator with Direct Display, 1841...
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6 Pocket Calculators...
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Collection of 8 Spokewheel Calculating Machin...
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Odhner's Arithmometer, c. 1900...
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"Brunsviga Patent" and "Doppel-Brunsviga" 13 ...
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"Millionär" Calculator, 1895...
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"Demos II", 1923...
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Logarithmic Calculating Drum, c. 1930...
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3 Disc Calculators...
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"Kuli" Calculating Machine, 1909...
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Universal Adder, 1904...
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"Curta Type II" (Grey), 1948...
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2 Calculating Watches...
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Group of Electron Tubes...
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Approx. 180 Electron Tubes...
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Approx. 170 Electron Tubes...
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Approx. 110 Electron Tubes...
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Display Collection of Tube Types...
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Approx. 85 Electron Tubes...
