Author: LOY, W. D.
Title: How to Use the Chinese Abacus
Description: 1947. LOY, W. D. HOW TO USE THE CHINESE ABACUS. Washington, D. C.: Loy's Chinese Calculator, (1947) Text illustrations. Octavo-size pamphlet (8 1/2 by 5 1/2 in.), illustrated paper wrappers, side stapled. [4],56,[4] pp. The first few pages have a gentle crease at top fore-corner, else clean and in very good condition. Offered with one of Loy's Chinese Abacus: wood frame, 7 1/4 by 10 in. with metal dowels and black and white beads; printed paper label along one edge ("pat. pending'). Housed together in a lightly worn manufacturer's cardboard box. .

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