Japanese Wooden Abacus Soroban Math Calculating Tool Vtg 1/4 Beads 23 Rows ST74 Kutani yaki 45 cm long x 45

45 cm long x 45 cm wide x 2 cm thick

This is a carved wooden row boat figure in a South East Asian style

Item weight: 454 grams

This cup is a textured pale blue with a white design

a slop bowl for used water (kensui)

Japanese Wooden Abacus Soroban Math Calculating Tool Vtg 1/4 Beads 23 Rows ST74 Kutani yaki 45 cm long x 45Japanese 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 center is one unmarked stack used for decimal places for more complicated calculations. Many primary schools all over Japan