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Seamless pattern with different vintage abacuses. Vector illustration in ink hand drawn style.
Seamless pattern with different vintage abacuses. Vector illustration in ink hand drawn style on white background.
Seamless pattern with different vintage abacuses. Vector illustration in ink hand drawn style on white background.
Suanpan Chinese abacus, also Suan Pan and souanpan. Counting frame and calculating tool with red beads sliding on wires in a wooden box. It is still used today, despite pocket electronic calculators.
Abacuses around the world. Vector hand drawn illustration of the different abaci. Yupana, Inca Empire. Roman abacus. Schoty, Russian. Suanpan, Chinese. Soroban, Japan.
Vector hand drawn illustration of mechanical calculators history. XVII Century. Napiers bones and cylindrical form calculating tables, Schickard's calculating machine, Pascaline.