Blueprint reading; a practical manual of instruction in blueprint reading through the analysis of typical plates with reference to mechanical drawing conventions and methods, the laws of projection, etc
A 1919 technical instruction manual from the American Technical Society in Chicago, written by Howard Parker Fairfield with Ervin Kenison and Edward B. Waite to teach machinists and drafting students to read blueprints. The figures are line diagrams of projection: solids cut by planes, cones and cylinders, dashed hidden lines and projection rays, plan-and-elevation pairs usable as geometric line art.
