Probably the first vehicle of its kind in the United States, an automobile has been designed for the Milwaukee, Wis., police department to be used in transporting unexploded bombs which saboteurs or spies might “plant” in factories producing defense materials. Its body is a heavy steel “hopper,” weighing 3,300 pounds, and so, shaped that the force of an accidental blast would be directed upward through the open top. The bottom, three feet square, is made of five layers off half-inch boiler plate, while the beveled sides consist of two layers of plate with a 2 1/2 inch oak plank between them. Heavy boiler plates reinforces the driver’s cab, and rear window of 1 1/2 inch bullet proof glass protects the driver from flying fragments. In practice tests, explosions have forced the hopper about four inches down or its special springs, but have done no damage to the machine itself.