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Illustrated catalogue of Wadsworth, Howland & Co. : importers and dealers in artists' supplies and architects' and drafting materials. (1895)

Wadsworth, Howland & Co. (Boston, Mass.) · Cambridge Co-operative Soc., Boston · leaf 151

An illustration from Illustrated catalogue of Wadsworth, Howland & Co. : importers and dealers in artists' supplies and architects' and drafting materials., 1895, leaf 151 — ^, or I,3g inches to the foot, each ....... .20 The advantages of these Scales are: they expand and contract nearly the same as Drawing Paper, do not soil the work,and distances can i^e set off from them without the use of Dividers. We manufacture to order Scales to any divisions, in Ivory,… … No. 23S. The Triangular Scale Guard is a very useful attachment to the Tri-angular Scale, to obviate the liability to error, and the loss oftime caused by the necessity of a careful examination of the Scaleeach time it is used. ....... each $ -25 STANDARD STEEL RULES. No. 239. Steel Rule, graduated…

Artists' materials · Mathematical instruments

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