Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 378
1530. PERSPECTIVE CENTRa — LINEAD.—The edges of legs on the sides ^, b, and c must be in line with their common 1CZL axis, with clamp screws to hold the movable legs in their set position. The directing pins b and c should be set on the radial lines of the back point of the perspective, when the…
Mechanical movements
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
