GWR Castle class 4-6-0 No 5015 Kingswear Castle at West Ruislip with a Birkenhead to Paddington express on May 23, 1953.

Peter Kerslake adds "5015 from Wolverhampton Stafford Road was built in July 1932 and remained in service until condemned in April 1963 from Cardiff East Dock."
Photo: C.R.L. Coles/Rail Archive Stephenson