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 129
126 ILLUSTRATED AUCHITECTURAL, These are the points through which the centre-lines of each thread arcdrawn. From a measure to f, and draw fij ; and from a to b and f, and
Architectural drawing · Mechanical drawing
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
