training regulations Weapons / War Department : Browning tank machine gun, caliber .30, model of 1919 / War Department training regulations Machine gun / War Department employment of machine guns : Tactical / General Staff Carriage of artillery equipment by air : QF 25 PR. Mark 2 gun on carriage 25 PR, Mark I in Dakota aircraft Carriage of artillery equipment by air : QF 6-PR 7-CWT, MK 4 gun on carriage 6-PR, MKS 1, 1A or 2 in Dakota Aircraft 303 Maxim Guns field manual 37-mm Gun : M1916 : FM 23-75 field manual Seacoast artillery : service of the piece : 8-inch Gun, railway artillery war department technical manual 20-MM automatic gun M3 / War Department field manual Seacoast artillery : service of the piece : 12-inch Gun, (barbette carriage) Instructions for mounting, using and caring for disappearing carriage L.F., model of 1898 for 6-inch gun, model of 1897 M I Instructions for mounting, using and caring for disappearing carriage L.F., model of 1905 M II and 6-inch guns, models of 1905 and 1908 : January …