SR King Arthur class 4-6-0 No 763 Sir Bors de Ganis, coupled six-wheel tender, with a down train at Bromley South.
This is Henry Casserley's back garden, right down to the gazebo on the right. One can sort the order of Henry's 'Bromley years' photos from changes to the garden at the fence with the railway. I think it's a bit later than the '20s judging by comparison with similar photos including that little edifice on the right which I think appears only in photos dating from his last few years at that place (he moved to Berkhamstead in 1938).


Photo: Reginald S. Clark/Rail Archive Stephenson