The Ingenious Mechanisms Vol 1-4 Complete Set by Franklin D. Jones is a comprehensive collection of textbooks focusing on technology and engineering. Published by Industrial Press, Inc. in 1967, these orange-covered books cover various subjects such as mechanical engineering, drafting, and mechanical drawing. Written in English by renowned authors Franklin D. Jones, John A. Newell, and Holbrook L. Horton, this set includes a total of 493 pages and is a valuable resource for adult learners and university students studying in the field of engineering. Each volume measures 9.5 inches in length, 6.5 inches in width, and 1.5 inches in height, with a weight of 32.1 ounces.