Jamison, Alpha Pierce. [from old catalog] · New York, J. Wiley & sons; · leaf 224
MECHANICAL EXECUTION OF DRAWINGS. 205 PLATE No. 45. … 2o6 MECHANICAL DRAWING. in the shadow is uniformly dark and is illustrated by uniformruling of heavy lines closely spaced.
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
