Elements of Mechanism Sixth Edition Revised By Venton Levy Doughtie, M.S. in M.E. -- (professor of Mechanical Engineering, University of Texas) Copyright 1904, 1905 by Peter Schwamb and Allyne L. Merrill -- Copyright was renewed several times by various people. This is a 6th edition. John Wiley and Sons, Inc. of New York -- publisher 428 pages -- illustrated with drawings and formulas. Good condition. No jacket. Two names written on first end page, a few notes written on back pastedown, and multiple under-linings throughout the book. Page binding tight, cover spine loose. First two pages of book have small lower corner dog-eared corners. Spine wording partially worn.