In lined green livery with a small crest so likely to be 6421 at Banbury at the time taken somewhere on the former GW & GC joint line given the origin of the Beware of Trains sign in another picture just along the line, going by the profile of the hills in the background this is between West Wycombe and Saunderton, and we think it is an Up train just south of Saunderton taken from near the Golden Cross public house. The coach is Hawksworth brake third to Diag 132, built 05/52 and withdrawn 09/63