LHT-S-5501S Class 55xx 2-6-2 Great Western Green 4589 Steam Locomotive - DCC Sound FittedThey were designed as small mixed traffic branch locomotives, mainly used on branch lines. They were a development of Churchward's 4500 Class with larger side tanks and increased water capacity. 100 were built between 19271929 at the GWR Swindon Works and were numbered 4575 4599 and 5500 5574. Fifteen locomotives were fitted with auto apparatus in 1953 to enable them to run push pull trains on South Wales lines with auto trailers. They are often