This lot is for 3 manuals: The first is TM 9-1245 War Department 37-MM Antitank Guns M3 and M3A1 and Carriages M4 and M4A1 6 February 1943. Ordnance Pamphlet No. 826 20MM Antiaircraft Gun Mark 4 and Mark 2. War Department TM 9-215 Thompson Submachine Gun Cal. .45 M1 October 10 1942.