Japanese Wooden Abacus Soroban Math Calculating Tool Vtg 1/4 Beads 13 Rows ST68 kiku UNITED NATIONS 1976 Medal

UNITED NATIONS 1976 Medal

This Japanese vintage porcelain flower vase or kabin has an elegant round shape

Fold marks on the top corners and top edge

Cards have some stains and blemishes

Japanese Wooden Abacus Soroban Math Calculating Tool Vtg 1/4 Beads 13 Rows ST68 kiku UNITED NATIONS 1976 MedalJapanese 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