Notes on technical sketching and free hand lettering for engineering students (1912)
Smith, Alton Lincoln, 1867- [from old catalog] · Worcester, Mass., The author · leaf 115
\ \ E … WMMM^ o o 1 o _ o ( O o o o o O KIVET HOLES AND HEAOi. M ^^ Fig. S3 113 nuule twice as heavy as tlie other hues and are called shade lines. The object of usiiif^- shade lines on adrawing is for the pictorial effect only. They impart an appearance of solidity. Shade lines are nowseldom used on…
Mechanical drawing · Lettering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten07unit-303-207.webp)
