Fry, Horace Pugh. [from old catalog] · Philadelphia · leaf 10
ds andpencils. Cut the wood back for IJ, exposing the lead for f,then flatten the lead by rubbing opposite sides on a file and bringto a knife edge by using a slight rocking motion. This point willhave the appearance of the ruling pen point, but broader. 1. A NUMBER CIRCLE is to be placed in the…
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
