Geometrical drawing, projection drawing, freehand and ornamental drawing, wash work and brush drawing, elementary perspective drawing, architectural drawing (1921)
International Correspondence Schools · Scranton, PA : International Textbook Co. · leaf 125
4A … §2 PROJECTION DR^WVING 47 Ink in the plan, elevation, and development of this cylinder,but omit all lettering except the title, name, date, etc. 22. Problem 31. Exercise V, Sheet III.—In Problem31, a cone is represented, but the principle is exactly thesame whether the figure is a cone or a…