Elementary projection drawing. Theory and practice. For preparatory and higher scientific schools, industrial and normal classes; and the self-instruction of teachers, inventors, draftsmen, and artisans. In six divisions .. (1880)
Warren, S. Edward (Samuel Edward), 1831-1909 · New York, J. Wiley & sons · leaf 114
Fig. 4. Fig. 5. either in polygonal or circular segments (Fig. 3). All of theseare used in building up compound beams, braces, or columns,Figs. 4_10, of those here given,* may all be taken as on a scale
Geometrical drawing · Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
