Practical draughtsmen's work, with numerous engravings and diagrams (1903)
Hasluck, Paul N. (Paul Nooncree), 1854-1931, ed · Philadelphia, D. McKay · leaf 13
Fig. 1.—Back of BattenedDrawing Board. Fig. 2.—Edge of ClampedDrawing Board. The first thing necessary is a drawing-board, which shouldbe made about an inch longer each way than the largest sheetof paper in general use. If the sizes of the drawings varyconsiderably, it will be convenient to have…
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
