The illustrated architectural, engineering, & mechanical drawing-book : for the use of schools, students, and artisans ; upwards of 300 illustrations (1856)
Burn, Robert Scott · London : Ward and Lock, 158 Fleet Street · leaf 113
>^ jiSO y8 010:BLi2161 18. fig. 20. ExAMiLE 20, fig. 20, is the same subject as in the previous figure. Thepupil, aided by the letters of reference and the figures, should have no diffi-culty in finding the various points in fig. 20 from fig. 19, and vice versa, if EXGIXEEUING, AND MECHANICAL…
Architectural drawing · Mechanical drawing
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
