Only existing Schmallturm is at Bovington. It was inedvertantly dragged downrange as a target. By the time someone had informed them if its importance, it was all shot up. It was sitting behind the museum when I was visiting there. The turrets were never married up with the chassis outside of a couple prototypes, which were being built at separate areas. The US captured the chassis and the Brits got the turrets. Good for us,,that Panther II would have been a mean cat to confront.