T.O. NO. 01-40-1. Pilot's Flight Operating Instructions for Army Model A-20G-1-DO through A-20G-35-DO/A-20J-1-DO through A-20J-10-DO and subsequent P-70-2 and P-70B-2, British Model Boston IV Airplanes. Washington D.C., Commanding General Army Air Service command and Chief Bureau of Aeronautics Navy Dept, January 25, 1944. 136 pages, illus in b&w and color, Sm 4to (8.5x11"), 3-hole punched in new binder. Marked "Restricted". Excellent condition, light toning. Desirable and scarce vintage medium bomber manual from WWII.