Walker, William, b. 1821 · New York : C. Scribner · leaf 295
Fig. 206. Fig. 207. eye and any point on the object you wish to measure/rom ;then let the thumb or first finger move along the pencil asrequired, till it reaches the point you wish to measure to.Having obtained this measurement, it can now be com-pared with, or measured into, any other part of the…
Drawing -- Study and teaching
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