Blessing, George F. (George Frederick), 1875-1921, Darling, Lewis A. (Lewis Andrew) · New York, J. Wiley & sons; [etc., etc.] · leaf 26
y fortinted and water-color work. r 4. Ruled Paper. In the study of free-hand lettering and insketching, the beginner can save much time and secure greateraccuracy by using specially ruled paper, the advantage beingthat proportion can be obtained without the aid of measuringinstruments. Fig. I (a)… … (b) Isometric Ruling. (a) Cross-Section Ruling. Fig. I. — Ruled Paper. I (b) shows isometric ruling, which is used in makingisometric perspective sketches. Care must be exercised in cleaning drawings made on cross-section paper, as cleaning with either the eraser or the artgumtends to dim the…
Mechanical drawing
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