badly damaged from use as a target
One of two prototype turrets to survive the war; one went to the USA, the other to Britain where, in due course it was handed over to the Tank Museum. However it was later disposed of and taken up to the Royal Artillery range at Larkhill on Salisbury Plain as a hard target. Some years later the badly damaged remains were recognised, rescued and brought back to Bovington where staff at the Tank Museum workshops cleaned up and repainted what was left.
(from Museum website)