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 lubricants & friction report Wear of gun barrels by copper bands / D. Tabor [and] H.W. Worner - Section of Lubricants & Bearings Serial no. A 44 Materiel instruction memorandum : The Firing Battery 155mm Gun M1 Thompson submachine gun caliber .45, M1928A1 - USA Basic Field Manual, FM 23-40 How guns burst / Jim Buchanan Bethlehem steel. Bethlehem ordnance, 105m/m field gun the grosset all-color guide series Guns / by Frederick Wilkinson. Illustrated by Michael Shoebridge Bofors. 40mm A.A. field automatic gun L/60, Sight Bofors. 10,5cm anti-aircraft field gun L/50 Bofors. 20mm automatic field gun L/70 M/49 (PR-1-151, 152)