Japanese Wooden Abacus Soroban Math Calculating Tool Vtg 1/5 Beads 13 Rows ST63 fabric art inside dimension: 53 cm long

inside dimension: 53 cm long x 5

Vtg Japanese Lacquerware Table Legged Tray Ozen

Some black marks

Morishita Town (Katano) in 1917

Vtg Japanese Ceramic Zodiac Display Plate

Japanese Wooden Abacus Soroban Math Calculating Tool Vtg 1/5 Beads 13 Rows ST63 fabric art inside dimension: 53 cm longJapanese 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