Roman using calculator. From a Gem in the cabinet of France. The ancients counted by means of small stones (calculi). Here the Roman arranges the calculi, while holding a reckoning tablet with Etruscan characters.
Image ID: 001035
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Image size: 8.6 Mpixels (24.5 MB uncompressed) - 2596x3300 pixels (8.6x11.0 in / 22.0x27.9 cm at 300 ppi)