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Illustrated catalogue of Wadsworth, Howland & Co. : importers and dealers in artists' supplies and architects' and engineers' stationery. (1885)
Wadsworth, Howland & Co. (Boston, Mass.) · Wadsworth, Howland & Co., Boston · leaf 137
ter, half circle, bevelled edge, half degrees, .50.85 I.GO1.151.252.002.65 Paper Protractors. No. 187. Whole Circle Protractors, 8 or 13 inches diameter, half degrees,on Drawing Paper, printed in red or black, .... 188. Same as No. 187, on Bristol Boards, 189. Same as No. 187, on Vegetal… … No. 192. Protractor, 4 inches diameter, half circle, whole degrees, centre on outer edge $1.90 Protractor, 5 inches diameter, half circle, half degrees, centre on outer edge, 2.50 Protractor, 6 inches diameter, half circle, half degrees, centre on outer edge, 3.20 Protractor, 6 inches diameter,…Artists' materials · Mathematical instruments
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