up in the Soviet Union, where they may have influenced the design of the T-28 and T-35 tanks. Norman Baillie-Stewart, a British army lieutenant, was court-martialled in 1933 and served five years in prison for providing the plans of the Independent (among other secrets) to a German contact. It remained in use for experiments until 1935, when it was worn out and retired, now with the Bovington Tank Museum, where it is preserved. References Bibliography External links A1E1 Vickers Independent Interwar tanks of the United Kingdom Heavy tanks of the United Kingdom Multi-turreted tanks Vickers Abandoned military projects of the United Kingdom History of the tank Trial and research tanks of the United Kingdom