The London, Midland & Scottish Railway operated hundreds of 2-6-4 tank engines, the largest such fleet of any "Big Four" railway before nationalization in 1948, and several LMS 2-6-4Ts are preserved in the UK. Only one of the survivors is a three-cylinder locomotive, LMS 2500, which was designed by Sir William Stanier for fast commuter trains on the London, Tilbury and Southend Railway (LTSR) and built at Derby in 1934. LMS 2500, later BR 42500, operated out of Shoeburyness until 1962 and is typically displayed in the Great Hall of the National Railway Museum.

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