Abacus

An abacus, also known as a counting frame, is a tool used in arithmetic. Although it is an ancient device it is still used by merchants in China, Japan, India and in other parts of the globe.

The precursor to the abacus is the counting board. The most primitive form of a counting board is simply lines drawn in sand with pebbles placed between the lines as place-holders to represent numbers. A more portable device would be a wooden board with grooves that could hold place markers.

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ORIGINAL PRIMITIVE ANTIQUE FRENCH WOODEN ABACUS ORIGINAL PRIMITIVE ANTIQUE FRENCH WOODEN ABACUS $49.10 1d 22h 23m
ANTIQUE ABACUS COUNTING FRAME BEADS WOODEN CALCULATOR ANTIQUE ABACUS COUNTING FRAME BEADS WOODEN CALCULATOR $9.99 2d 20h 40m
RARE! Russian USSR Counting Frame Antique ABACUS! 60s RARE! Russian USSR Counting Frame Antique ABACUS! 60s $9.99 2d 22h 25m
Abacus Wooden Counting Russian Antique Soviet 245 mm Abacus Wooden Counting Russian Antique Soviet 245 mm $19.95 2d 22h 34m
GREEN MARBLE & ANTIQUE BRASS ABACUS W/15 RAILS GREEN MARBLE & ANTIQUE BRASS ABACUS W/15 RAILS $9.99 3d 3h 16m
Antique Toy Abacus Wood Antique Toy Abacus Wood $9.00 4d 22h 20m
ANTIQUE ABACUS COUNTING FRAME BEADS WOODEN CALCULATOR ANTIQUE ABACUS COUNTING FRAME BEADS WOODEN CALCULATOR $35.00 5d 22h 17m
ANTIQUE ABACUS COUNTING FRAME BEADS WOODEN CALCULATOR ANTIQUE ABACUS COUNTING FRAME BEADS WOODEN CALCULATOR $100.00 5d 22h 28m
Japanese ANTIQUE WOODEN ABACUS SOROBAN 29cm/11.4inch Japanese ANTIQUE WOODEN ABACUS SOROBAN 29cm/11.4inch $48.00 26d 13h 49m
ANTIQUE ABACUS CALCULATOR COUNTING BEADS WOODEN ANCIENT ANTIQUE ABACUS CALCULATOR COUNTING BEADS WOODEN ANCIENT $19.99 26d 23h 42m
Japanese antique Soroban, an abacus in Japan Japanese antique Soroban, an abacus in Japan $395.00 28d 21h 51m