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3 Calculating Machines...
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Arithstyle, 1910...
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Curta "Type I" Calculator, 1948...
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"Antares" Cutaway Model...
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"The Brical – Money Calculating Machine", c. ...
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Tim Unitas, 1912...
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3 Spokewheel Calculating Machines...
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American Adding Machine, 1913...
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2 Adding Machines...
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"Feliks" and "Feliks M", 1935/1955...
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3 Calculation Devices...
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Brunsviga Mod. 14 Twin Calculator, 1958...
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Original Odhner, c. 1905...
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"Kuli" Calculating Machine, 1909...
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T-I-M (Time Is Money) Mod. 1, 1909...
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"Hewlett Packard HP-97" Desktop Calculator, 1...
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Olympia CD-400 Desktop Calculator, 1970...
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2 Calculating Games...
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"Consul – The Educated Monkey", 1916...
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6 Calculating Toys...
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"Answer Game" Calculating Robot, c. 1963...
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Professor Fuller's Slide Rule Calculator Mod....
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"The Adder", 1868...
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"Curta Type II" (Black), 1948...
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"Machine d'Arithmétique" of 1652...
