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Modern Japanese Abacus

Modern Japanese Abacus

Japanese abacus

Japanese abacus

Modern Japanese abacus

Modern Japanese abacus

Cardboard case for Soroban

Cardboard case for Soroban

1975-1978
Japanese abacus or soroban, c.1930

Japanese abacus or soroban, c.1930

circa 1930
Japanese abacus supplied by the Japanese Chamber of Commerce & Industry, 1996.

Japanese abacus supplied by the Japanese Chamber of Commerce & Industry

Soroban Japanese abacus, with 15 digit. Purchased from Association of Teachers of Mathematics, 2001.

Soroban Japanese abacus, with fifteen digits

2001
Modern Japanese abacus 8 3/4" with box

Modern Japanese abacus 8 3/4" with box