Instruction for heavy artillery / prepared by a board of officers, for the use of the army of the United States Materiel instruction memorandum : The Firing Battery 155mm Howitzer M1 o.o. form Artillery gun book : 1940 buships manual Orientation training manual for DLG Terrier shipboard guided missile weapon systems (Vitro Laboratories, Silver Spring, Maryland) / United States Navy Department. Bureau of Ships : … buships manual Orientation training manual for DLG Terrier shipboard guided missile weapon systems (Vitro Laboratories, Silver Spring, Maryland) / United States Navy Department. Bureau of Ships : … Materiel instruction memorandum : The Firing Battery 155mm Gun M1 Instruction for heavy artillery; prepared by a board of officers, for the use of the army of the United States with service of a gun … Gunnery, fire control and position finding for antiaircraft artillery