GWR Hall class 4-6-0 No 6910 Gossington Hall with the 10.08am York-Bournemouth passing Lyndhurst Road on 7 May 1963.
Looks like 6910 has lost its front number plate - unusual even for the Western Region at this time.
The Bulleid brake at the front carries the BR coach emblem on the bodyside indicating that it is an ex Royal Wessex vehicle.

Photo: M.J. Fox / Rail Archive Stephenson