Browning machine gun caliber .30, HB, M1919A4 (mounted in combat vehicles) - USA Basic Field Manual, FM 23-50 Browning machine gun, caliber .50 HB, M2 / War Department - USA Field Manual, FM 23-65 Browning machine gun, caliber .30, HB M1919A4, ground - USA Basic Field Manual, FM 23-45 Browning machine gun, caliber .30, HB, M1919A4, ground - USA Basic Field Manual, FM 23-45 Antiaircraft artillery : service of the piece, 37-mm antiaircraft gun (case 1 firing) / prepared under the direction of the Chief of Coast Artillery - … Antiaircraft artillery : service of the piece 40-mm antiaircraft gun - USA Coast Artillery Field Manual, FM 4-141 Antiaircraft artillery : service of the piece 3-inch antiaircraft gun - USA Coast Artillery Field Manual, FM 4-125 List of publications for training - USA Basic Field Manual, FM 21-6 List of publications for training, including training films and film strips - USA Basic Field Manual, FM 21-6 List of training films, film strips, and film bulletins - USA Basic Field Manual, FM 21-7 List of publications for training - USA Basic Field Manual, FM 21-6 List of training films, film strips and film bulletins - USA War Department Basic Field Manual, FM 21-7