Japanese Wooden Abacus Soroban Math Calculating Tool Vtg 1/4 Beads 13 Rows ST52 Hako uneven rim

uneven rim

that are held firmly in place

It is good to display it in your room as a lucky charm

Iron Chagama

blue plaid and green floral design

Japanese Wooden Abacus Soroban Math Calculating Tool Vtg 1/4 Beads 13 Rows ST52 Hako uneven rimJapanese 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