New U.S. Tank Destroyer -- A new U.S. tank destroyer, self propelled anti-tank gun of 105 mm. The unit, which uses tank type tracks for propulsion, also has an antiaircraft gun for protection against strafing. This picture was made at a fort in the central United States, where the U.S. Army's Armored Force develops weapons and tactics. The new weapon has already been tested in actual battle in North Africa. February 10, 1943.;New U.S. Tank Destroyer -- A new U.S. tank destroyer, self propelled