Maintenance Manual for the Ordnance, Q.F. 25 Ponder, Mark II and III on Carriage 25 Ponder, Mark I and Mounting Self-Propelled 25 Ponder, C, Mark … 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 … Machine gun mounts for trucks/ By John Vink BSc, 6th US Armored Division (ASC).
