Inside Out LibraryAppletons' cyclopædia of technical drawing (1896)Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 268Mechanical drawingInternet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.More pictures from Appletons' cyclopædia of technical drawingMore like this
