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Questions before ordering? Use this form to request more information from Popeks Books, IOBA About The Fundamental Operations in Bead Arithmetic: How to Use the Chinese Abacus.
Questions before ordering? Use this form to request more information from Popeks Books, IOBA About The Fundamental Operations in Bead Arithmetic: How to Use the Chinese Abacus.
C. L. Choy, 1940. No publisher or date listed, circa 1940s. Brief 52-page pamphlet on using an abacus. Cover has soil and stains. The pages are stained around the edges. . Soft Cover. Good/No Jacket. 5"x7.5". …