Shop sketching, a course of problems for mechanical drawing students
A 1919 mechanical drawing textbook by Ralph Flagg Windoes, published in Milwaukee by the Bruce Publishing Company as a set of shop sketching problems for trade and technical students. The plates are line drawings of machine parts and blocks in orthographic and isometric projection, with dimension lines, arrowheads, fractional figures, hidden-line dashes and centre lines, offering ready-made technical mark-making and measured diagram vocabulary.
