LMS Black Five 4-6-0 No 5025, which was piloting Royal Scot 4-6-0 No 6130 The West Yorkshire Regiment, after ramming LNWR 7F 0-8-0 No 9169 at Bletchley, with the 7.50pm Euston to Stranraer express on October 13, 1939.

Photo: C.R.L. Colers collection/Rail Archive Stephenson