Radford's cyclopedia of construction; carpentry, building and architecture. Based on the practical experience of a large staff of experts in actual constrcution work (1909)
Johnson, Alfred Sidney, 1860-, Radford, William A., 1865- · Chicago Radford Architectural Co · leaf 88
lower end and the under side are invisible. 65. Third Plane of Projection or ProfilePlane. Many times, the two views of an objectas plan and elevation, are sufficient to describe MECHANICAL DRAFTING 65 the object completely; but in other cases a thirdview is required to give a satisfactory idea of…
Architecture · Building
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.