Fry, Horace Pugh. [from old catalog] · Philadelphia [The John C. Winston co.] · leaf 29
e your drawing. 11. Examples of line shading will be found on Plates B, C,and D, which cover most shapes met with; study them and applyto your special case. 12. Each drawing must have a general title as shown on blue-print sketch from which the drawing is made. 13. If there are two or more pieces… … Plate B. 27
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.