(Source: Technical Manual TM 9-811, U.S. War Department, 1944.) black-and-white illustrations photos Diamond T Cargo Truck February 4, 2015by Lone_Sentry_Admin1 min read Illustration of the Diamond T Model 968A Cargo Truck with Open Cab. (Source: Technical Manual TM 9-811, U.S. War Department, 1944.) (Source: Technical Manual TM 9-811, U.S. War Department, 1944.)