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 146
J^4y./d Fiy./5 toward V form another vertical square in perspective, asshown at abet, Fig. 18, and lines from e toward V^ and from dtoward V intersecting at q. Fig. 18, form at bdqc anotherhorizontal square in perspective, so that Fig. 18 now presents 68 PROJECTION DRAWING §2 the perspective…
