Japanese Wooden Abacus Soroban Math Calculating Tool Vtg 1/4 Beads 23 Rows ST73 Arare Pattern Item weight: 887 grams

Item weight: 887 grams

5 cm long x 42

Kanji says: Nanki Katsuura onsen

Utamaro: Infrequent love

The shape of each plate is different because they are hand-carved from wood

Japanese Wooden Abacus Soroban Math Calculating Tool Vtg 1/4 Beads 23 Rows ST73 Arare Pattern Item weight: 887 gramsJapanese 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