Practical engineering drawing and third angle projection, for students in scientific, technical and manual training schools and for ... draughtsmen .. (1897)
Willson, Frederick Newton, 1855-1939 · Princeton, N.J., The author · leaf 93
h section. 244. Masonry constructions may be broadly divided into rubbleand ashlar. In ashlar masonry the bed-surfaces and the joints (edges) areshaped and dressed with great care, so that the stones ma) notonly be placed in regular layers or courses, but often fill exactlysome predetermined place,… … RUBBLE MASONRYLiglit India Ink. VULCANITEIndia Ink,
Mechanical drawing · Lettering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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