Arithmometere. Charles Xavier Thomas, Colmar in Alsace, France, 1872. @MarkFrankclocks
Arithmometere. Charles Xavier Thomas, Colmar in Alsace, France, 1872.  @MarkFrankclocks
Uploaded October 2024 | Updated September 2026, 2 weeks ago
Demonstration video of the four species function (addition, subtraction, multiplication, division) of the Arithmometere. This model was the first commercially successful calculator to be made in a series production.
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Arithmometere. Charles Xavier Thomas, Colmar in Alsace, France, 1872.

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