ABACUS

ABACUS

BF-22006 ABACUS

Regular price $90.00
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Mathematical tool

Description

The abacus, also called a counting frame, is a hand-operated calculating tool of unknown origin used since ancient times in the ancient Near East, Europe, China, and Russia, millennia before the adoption of the Hindu-Arabic numeral system. The abacus consists of a two-dimensional array of slidable beads.
14" x 7"
Antique wood over 50 years

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