-^, \]^, or I ^ inches to the foot, each, --o The advantages of these Scales are ; they expand and contract nearly the sameas Drawing Paper, do not soil the work, and distances can be set off from themwithout the use of Dividers. We manufacture to order Scales to any divisions, in Ivory, Bo.xwood,… … No. 238. 238. Triangular Scale Guard, ........ .25 A very useful attachment to the Triangular .Scale, to obviate the liability to error,and the loss of time caused by the necessity of a careful examination of the Scaleeach time it ii used. 239- 240. Steel Rule, graduated to inches, 8, 10, 12, 16,…
Artists' materials · Mathematical instruments
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