Original AAF Tech Orders (all instructions and parts catalogs, marked "Restricted") from 1944-45 as follows: a) T.O. 03-1-39, Cargo Tie-Down Equipment, 15 Sep 1944, 9 pp, illus. Covers securing cargo in aircraft. b) T.O. 03-1-52, Cargo Winch Model TM-600, 5 Nov 1944, 28pp, illus. c) T.O. 10-1-138, Numbering Machine, Army Type A-3/Navy Type R-1, 25 Jan 1945,8pp, illus. d) AN 03-1-48, Engine Supercharger Intercoolers and Exit Flap Actuators, 25 Nov 1944, 130pp, illus, covers P-38, B-17, B-24, PBY, P-61, B-29 All are very good, 3-hole punched and stapled. 8.5x11"