Vintage 1920s Addometer Mechanical Calculator - $40 (concord / pleasant hill / martinez)

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Vintage 1920s Addometer Mechanical Calculator, made by Reliable Typewriter & Adding Machine Co. in Chicago, in good vintage condition, works great, with metal stylus, no battery needed.

post id: 7898543744

posted: 2025-11-26 13:51

updated: 2025-12-04 10:45

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Vintage 1920s Addometer Mechanical Calculator - collectibles - by...

Vintage 1920s Addometer Mechanical Calculator, made by Reliable Typewriter & Adding Machine Co. in Chicago, in good vintage condition, works great, with metal stylus, no battery needed.