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13 columns in different colors
The soroban is a counting frame with rods or beads used for arithmetic operations
Varnished wood with an antique finish
they grasp the mechanics of various exercises
Chinese ideograms indicating tens
Boulier chinois vintage - 13 rangées Montessori 13 columns in different colorsFeatures Varnished wood with an antique finish Perfect as a decorative piece but also fully functional for use Size: 28. 5 x 11. 8 cm Crafted with high quality construction for exceptional durability Ideal as a thoughtful gift Premium Decorative Abacus This particular abacus features meticulous craftsmanship in solid wood, reinforced with a brass frame, a glossy varnish, and deep black wooden beads with a semi satin finish. It will make an elegant
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