GWR/BR (WR) Castle Class Manual (Paperback)
A guide to the history and operation of one of Britain's most successful express passenger steam locomotive types
Haynes Publishing UK, 9780857332714, 160pp.
Publication Date: November 24, 2014
The Great Western Railway 4073 Class, or Castle Class locomotives were the pride of the GWR when introduced in the mid-1920s, and were heralded as Britain's most-powerful express passenger locomotives. 171 Castles were built or converted between 1923 and 1950, and eight preserved examples survive today.