The London, Brighton and South Coast Railway H2 class is a class of 4-4-2 steam locomotives for express passenger work. They were designed when D. E. Marsh was officially Locomotive Superintendent, and were built at Brighton Works in 1911 and 1912. As Marsh had worked on the Great Northern Railway as Chief Assistant to Henry Ivatt, the design closely followed that of the GNR Class C1 (large boiler). The entire class was scrapped by British Railways, but a replica entered service on the Bluebell