Category:Sharp calculators with abaci
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Media in category "Sharp calculators with abaci"
The following 4 files are in this category, out of 4 total.
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Sharp calculators with abaci, Japan - Ridai Museum of Modern Science, Tokyo - DSC07477.JPG 4,528 × 3,595; 7.59 MB
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Sharp-abacus-japan 02.jpg 640 × 640; 104 KB
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Sharp-abacus-japan.jpg 1,600 × 1,200; 451 KB
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武道館 (47069831914).jpg 4,608 × 3,072; 533 KB