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5 Spokewheel Adding Machines...
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6 Mechanical Calculators...
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Saxonia Calculator, c. 1905...
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3 Spokewheel Adding Machines...
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2 TIM (Time Is Money) Calculating Machines, 1...
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Archimedes Model A Arithmometer, 1906...
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7 Spokewheel Adding Machines...
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Hugo Bunzel Arithmometer, Vienna, c. 1905...
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Layton's Improved Arithmometer, 1910...
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2 x TIM and 1 x Mercedes...
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Orga-Constant Calculating Machine, c. 1924...
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Diera Calculating Machine, 1911 onwards...
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6 Spokewheel Calculating Machines...
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Group of Calculating Machines...
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8 Calculators...
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Rare Bunzel-Delton Brass Stepped-Drum Calcula...
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2 Curta Type II Pocket Calculators...
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Calculators and Calculating Aids...
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Large Arithmometer by Hugo Bunzel, Vienna, c....
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Alpina Universal Calculator, 1961...
