ADJUSTING ELEVATION AND DEFLECTION of 4.2-inch chemical mortar. This mortar had a rifled barrel and was designed for high-angle fire. Because of its accuracy (insured by rifled barrel), mobility, rate of fire, and ease of concealment, it was particularly suited for close support of attacking units.
ITALY
RADAR IN OPERATION NEAR SAN PIETRO INFINE. The operating parts were mounted on a semitrailer towed by a tractor or truck. A van-body truck carried a complete stock of spare parts. (Radar SCR 547.)
ITALY
CAMOUFLAGED MOBILE ANTIAIRCRAFT UNIT near San Pietro Infine. Enemy air attacks were not very numerous during the Winter Line fight; the Germans had few aircraft to spare and the weather tended to restrict the use of enemy as well as Allied aircraft. (Multiple-gun motor carriage M 15 composed mainly of a half-track personnel carrier with a 37-mm. gun, two .50-caliber machine guns, and M 6 sighting system.)
ITALY
HOWITZER IN THE MIGNANO AREA. This model was the largest U. S. artillery piece in Italy. It and the 8-inch howitzer were rushed from the States to help reduce the strong enemy fortifications of the Gustav Line; the most heavily fortified part of this line was in the Cassino area. (240-mm. howitzer.)