type had been largely superseded by the 4-6-0 type in the United Kingdom. The London, Brighton and South Coast Railway (LB&SCR) H1 class, introduced by D. E. Marsh in 1905 and 1906, was copied from the plans of the Ivatt C1 class, with minimal alterations. In 1911, L.B. Billinton was granted authority to construct a further six examples incorporating Schmidt superheaters, which became the LB&SCR H2 class. William Paton Reid of the North British Railway built twenty examples of his North British Atlantic, later known as H class, between 1906 and 1911. Two more were built after his retirement and the whole class became the LNER C11 Class in the 1923 grouping, while John G. Robinson of the Great Central Railway (GCR) introduced his 8D and 8E classes of three-cylinder compound locomotives in 1905 and 1906. . Preserved locomotives Several 4-4-2 locomotives were preserved in the United Kingdom. Bearing in mind that this information may become outdated over time, some known examples are: Great Northern Railway no. 990 Henry Oakley is part of the National Collection at the National Railway Museum in York, on static display at Bressingham Steam and Gardens in Norfolk. Great Northern Railway no. 251, the first large-boilered GNR Class C1, is part of the National Collection. The Bluebell Railway is building a replica of a London, Brighton and South Coast Railway (LB&SCR) Atlantic, similar to the GNR large boilered Atlantics. They are also in possession of a London and South Western Railway (LSWR) 415 class locomotive, no. 488. The Great Western Society is working on a replica of a 4-6-0 Saint class locomotive. Some of these ran as Atlantic s for comparative purposes and it was planned that the replica would also run in an Atlantic wheel configuration from time to time. One of the four London, Tilbury and Southend Railway (LT&SR) 79 class locomotives, no. 80 Thundersley, is preserved at the Bressingham Steam Museum in Norfolk. United States The original Atlantics in the United States were built with the hauling of wood-frame passenger cars in mind and came in a variety of configurations, including the four-cylinder Vauclain compound which had previously been used on express 4-4-0 American, 4-6-0 Ten-wheeler and 2-4-2 Columbia locomotives. Around the 1910s, railroads started buying heavier steel passenger cars, which precipitated the introduction of the type as the standard passenger locomotive. Nonetheless, the Chicago and North Western, Southern Pacific, Santa Fe