GWR Castle class 4-6-0 No 5012 Berry Pomeroy Castle and a Star class 4-6-0 at Old Oak Common shed in January 1932.
Peter Kerslake says "The slow emulsion film is playing its tricks with the steam effect. 5012 was built in July 1927 and first allocated to Newton Abbot. It later saw service from Exeter although its final days were spent at Oxford until withdrawal in April 1962."
Photo: George R. Grigs/Rail Archive Stephenson