LNWR 7F 0-8-0 No 49431 with the RCTS 'Hertfordshire Rail Tour' at Watford on 30 April 1955. It must have the most elaborate rail tour headboard ever! The two coach Push Pull portion to and from Rickmansworth is in the adjacent platform headed up by 41909, it made two trips.

Photo: D.M.C. Hepburne-Scott / Rail Archive Stephenson