Japanese Wooden Abacus Soroban Math Calculating Tool Vtg 1/5 Beads 17 Rows ST51 knife Japanese Noritake porcelain plate and
Japanese Wooden Abacus Soroban Math Calculating Tool Vtg 1/5 Beads 17 Rows ST51 knife Japanese Noritake porcelain plate andJapanese Soroban Abacus Calculator Tool This is a vintage Japanese abacus, or soroban. It is a mathematics calculating tool and is considered the first calculator in Japan. The Japanese abacus is different from the parent Chinese version. It has a top section of single beads and a bottom of stacked five beads. At the very center is one unmarked stack used for decimal places for more complicated calculations. Many primary schools all over Japan still
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