vintage abacus tool set used for making mathematical calculations |
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| navigate by keyword : abacus addition ancient antique archival arithmetic arranging bead beads black brown business calculating calculation calculations calculator childhood chinese close closeup color compute construction count counting culture cut difficulty division easy education educational effortless finance formula frame icon intelligence japanese learn learning math mathematical mathematics mental multiplication number object old fashioned red retro rod rods row school set shape sign single smart soroban student studying style subject subtraction supplies symbol teaching technology tool traditional vintage white work |
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| a vintage abacus tool set with 17 rods of brown beads and in a black frame used for making mathematical calculations easy in a white background |
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