Soft cover. Condition: Very Good. 9-1/2" x 11-1/2" Softcover; 40pp; Dark blue ring binder with white titling to front & spine, moderate handling wear to covers, text unmarked, binding is tight, VG condition. Letter signed by Peter Flaton laid in. Vintage manufacturer's catalog of automatic safety clutches from Flaton Machine Works in St. Louis, Missouri. Tabbed sections include Engineering, Standard Clutches, Shut-Off Clutches, V-Belt Sheaves, Roller Chain Sprockets and Specialty Application. Illustrated with diagrams. Signed by Author(s).