First deployed by the U.K. in 1941, the A22 Infantry Tank Mk. IV, or Churchill tank ... making it a top choice for hasty missions. The German Panzer V Panther tank was well-traveled in World ...

According to the Los Angeles Times, Vulcan Warbirds, one of Allen's companies, is suing the Collings Foundation over a rare Panzer IV, a vintage tank that Allen says he paid $2.5 million for in July.