Inside Out Library · ExploreNotes on mechanical drawing (1922)Wallis, Rolland S. [from old catalog], Iowa state college of agriculture and mechanic arts, Ames. Dept. of engineering extension. [from old catalog] · Ames, Iowa, Engineering extension department, Iowa state college · leaf 62Square Rectangle Rhombus (b) Quadrilaterals Rhomboid … Pentagon Hexagon Heptagon (c) Regular PolygonsMechanical drawingInternet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.More pictures from Notes on mechanical drawingMore like this
