Soroban Japanese abacus Soroban Japanese abacusBy: oksmithDate: 2019-04-14 Abacus AbacusBy: j4p4nDate: 2017-10-23 Chinese Suan Pan Chinese Suan PanBy: filtreDate: 2010-12-28 Abacus Japanese Abacus JapaneseBy: cmyDate: 2007-09-11
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