Japanese Wooden Abacus Soroban Math Calculating Tool Vtg 1/5 Beads 15 Rows ST69 Ceramic this parasol is covered with

this parasol is covered with tan and red colored paper in a spiral

Item weight: 60 grams (with box 120 grams)

Zushi stand box: There is no rule in the Zushi stand Box to "put this in"

This item features dark gray and white marble stone oval spheres

Japanese Wooden Abacus Soroban Math Calculating Tool Vtg 1/5 Beads 15 Rows ST69 Ceramic this parasol is covered withJapanese Soroban Abacus Calculator Tool This is a vintage Japanese abacus or soroban. It is a mathematical calculating tool and is considered the first calculator in Japan. The Japanese abacus is different from the original Chinese version. It has a top section of single beads and a bottom of stacked beads, usually five. At the center is one unmarked stack used for decimal places for more complicated calculations. Many primary schools all over Japan