LMS 5MT 4-6-0 No 44941 with the 4.38pm Marylebone-Nottingham near Chalfont & Latimer on 28 March 1966. Interestingly it has the remains of a previous allocation, 16F Burton painted in place of a shed code and its current allocation COLK neatly stenciled on the door below.

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