Hornby R30270 LNER Class A1 4-6-2 4478 Hermit: Big Four Centenary Collection. Nigel Gresley's A1 Pacific class emerged in the twilight years of the Great Northern Railway, a result of an idea that Gresley had nurtured since 1915. The First World War put his plans for new express passenger locomotives on hold but he applied his new three cylinder, conjugated valve gear designs to the O2 and K3 freight locomotives before returning to his plans for an express passenger Pacific in 1920, producing his 4-6-2 A1 design. No.1470 'Great Northern' was the first to enter service on the 11 April 1922 and Gresley confidently claimed that his A1 class could pull 600 ton trains which in September 1922 no.1471 'Sir Frederick Banbury' did. This is a 1:76 Scale model of a Class A1 steam locomotive decorated in LNER livery. This model features a high level of detail and excellent running.