Rudimentary treatise on the erection of dwelling-houses : illustrated by a perspective view, plans, elevations, and sections of a pair of semi-detached villas ... (1877)
Brooks, S. H. (Samuel H.) · London : C. Lockwood & Co. · leaf 93
ll pass through the ink and transfer it to the paper beneath, making equi-distant dots in the circle which the com- passes describe. The movable points have a joint in them just under that part which locks into the shank of the compasses, by which the part below the joint may be set perpen- dicular… … and the dotting point are similar in shape to each other) ; a the lengthening bar.
House construction
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
