Posing on the ex-works King.
Peter Kerslake adds "This fine picture reminds me of one of the many such images taken by the late Kenneth Leech. I had hoped to identify this footplate crew, but unfortunately have not yet been able to do so. A good shot, however, with 6015 fresh from Swindon, on a local "Running-in" turn beforegoing back into service at Old Oak Common, the engine's home shed."