Changes

4566 is a GWR Churchward 4500 2-6-2T '[[Whyte notation|Small Prairie]]', a class of small mixed traffic locomotives mainly used on branch lines. They were a common sight on the Severn Valley Branch from the 1920s; the last use there being in 1961.<ref name = "SB9">SVR Stock Book 9th Edition</ref> However, 4555 and 1420 visited the branch with an SLS railtour as far as [[Alveley Sidings]] on 19 September 1965. The cabside of GWR steam locomotives bore a letter on a coloured disc: the letter showed the power classification and the coloured disc showed the weight restriction. The 4500 Class was Yellow (up to 16 tons) and power classification C. The class was rated as a 4MT by British Railways. It used the 'Standard 5' GWR boiler.