ACTION DURING THE PO RIVER CROSSING at Ostiglia, 24 April. A 57-mm. antitank gun firing in support of an infantry assault across the railroad bridge to the north bank of the river. (The British 6-pounder was the forerunner of the 57-mm. gun. It was adapted for U. S. use and also manufactured for other United Nations under the lend-lease agreement as the 57-mm. antitank gun.)
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INFANTRY CROSSING PO RIVER UNDER FIRE, Ostiglia railroad bridge, 24 April. The crossing in this zone was opposed by enemy machine guns and 20-mm automatic weapons. The patrol above worked its way to the other side and knocked out enemy guns and crews. The railroad bridge was partially demolished and unfit for vehicles.
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“ALLIGATORS” ABOUT TO CROSS PO RIVER near Ostiglia. Developed by the U. S. Navy, the first shipment of these amphibian tracked vehicles arrived in December 1944 and training was begun. Great secrecy surrounded them and they were kept thoroughly camouflaged before the dash to the Po. They were armored and each had socket mounts at four locations for either .30-or .50-caliber machine guns. A stern ramp could be lowered to take on a vehicle. Maximum capacity was 8,000 pounds and a crew of three. (LVT(4).)
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FERRYING EQUIPMENT ACROSS THE PO in support of the infantry assault, Ostiglia, 25 April. The large vehicle is a 76-mm. gun motor carriage M18, designed for tank destroyer use. It was a full track-laying type, using a torsion bar independent suspension, and was front-sprocket driven. The vehicle was lightly armored, had a low silhouette, and was highly mobile.