document Letter from the secretary of war, transmitting The official Army Register Supply Catalog. Introduction and index. ORD 1 Group A. Organization Maintenance Allowances for Mount, Trailer, Multiple Cal .50 Machinegun, M 55 (Composed of Mount, Machinegun, Multiple Cal .50, M45C; and Trailer, 1 … Soldier's BCT Handbook. PAM 21-13 SIG 7 & 8 : Department of the Army Supply Catalog annual reports / war department Report of the Chief of Engineers U.S. Army