Johnston, Philip Devereux, 1855- · New York, D. Williams Company · leaf 156
al drawing to correspond. As each drawingor sheet of drawings is completed it is checked at everypoint by another draughtsman, who places his initialsupon it. In making a set of drawings of the engine, whichare included among the shop drawings, the pupil isexpected to work as described above.… … PLATE 55
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
