Old mathematical calculator abacus made from wood and metal bars

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Size: 4064px × 2556px
Photo credit: © Arunas Gabalis / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: abacus, ancient, antique, bar, bead, brown, business, calculate, calculation, calculator, count, finance, financial, frame, math, mathematical, mathematics, number, object, retro, row, tool, traditional, vintage, wood, wooden