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Portable Toshiba T3200 Portable Computer, 198...
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Hewlett-Packard 110 Portable Computer, 1984...
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German WWII Signal Corps "Hellschreiber", 193...
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Nema T-D Cipher Machine, 1946...
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Mercedes Euklid Model 1 Proportional-Lever Ca...
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Burkhardt Arithmometer Model A, c. 1900...
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Arithmomètre Payen, c. 1907...
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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...
