contributions of the museum of the great plains Early Indian trade guns, 1625-1775 / by T. M. Hamilton Indian trade guns 155-mm gun motor carriage M40 and 8-in. Howitzer motor carriage M43, hull and suspension : Ordnance maintenance - USA Voorschrift, Technical Manual, 9-1747 37-MM antiaircraft gun matériel : Ordnance maintenance - USA Voorschrift, Technical Manual, No. 9-1235 o.o. form Artillery gun book : 1940 Firing Tables (antiaircraft fire control tables) for Gun, Automatic, 37 mm. M1A2, Firing Shell, Fixed, H.E. M54 aand Shell, Fixed, Practice, M55A1C - USA Voorschrift … Guns illustrated 1985 / ed. by Harold A. Murtz ; Gun Digest Service of the piece : 8-inch gun M1 and 240-mm Howitzer M1 - USA War Department Field Manual, FM 6-95 Drill regulations for machine-gun organizations, Cavalry. 1910 training regulations Cavalry : the cavalry machine-gun troop / prep. under direction of the Chief of Cavalry - United States War Department Training Regulations TR 425-75 training regulations Cavalry : the cavalry machine-gun squad / prep. under direction of the Chief of Cavalry - United States War Department Training Regulations TR 425-65 training regulations Cavalry : the cavalry machine-gun platoon / prep. under direction of the Chief of Cavalry - United States War Department Training Regulations TR 425-70