The carpenter's new guide: being a complete book of lines for carpentry and joinery (1848)
Nicholson, Peter, 1765-1844. [from old catalog], Johnston, William, architect. [from old catalog] · Philadelphia, Grigg, Elliot and co. · leaf 45
B, where the double circleupon the base A represents the plan of a rail, and the bevel at No. 1, figure 4, represents the spring of theplank, and a b the pitch of the rail: therefore, it is very necessary that the reader should have a knowledgeof these figures and their demonstrations; and not be… … Fir/. 4. Fig. 5.
Carpentry
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
