East Somerset Railway Engine 5637 Swapping Ends
5637 is one of the 56xx class of tank engines built by the Great Western Railway (GWR) between 1924 and 1928. This followed the railway grouping of 1923 where a number of small South Wales railway companies were absorbed into the GWR along with their stock of locomotives.. Read it's history here https://5637.co.uk/history/