Arithmometre, designed by Charles Xavier Thomas, c. 1820, for the four rules of arithmetic, manufactured 1866-1870 AD, TM10901 - Tekniska museet - Stockholm, Sweden -

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Size: 1831px × 1092px
Photo credit: © Auk Archive / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: archival, archive, collection, historic, historical, history, reference, reportage