Japanese Wooden Abacus Soroban Math Calculating Tool Vtg 1/4 Beads 13 Rows ST68 Shino ware 12 cm wide x 28

12 cm wide x 28 cm tall

Sticker on the back:  Artist Michiko Kuge

and everyday equipment

It is elevated by two angular bracket legs

Japanese Wooden Abacus Soroban Math Calculating Tool Vtg 1/4 Beads 13 Rows ST68 Shino ware 12 cm wide x 28Japanese 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 beads, usually five. At the very center is one unmarked stack used for decimal places for more complicated calculations. Many primary schools all over Japan