D9012 "CREPELLO" departs Sheffield on the 17th May 1970 with the 1Z20 08:10 Leeds - Diss "The East Anglian" RCTS railtour, which ran via Chesterfield, Nottingham, Peterborough and March.

17/05/70 - 5Z20 Diss - Stowmarket. The Deltics - A Symposium: Section 3. (RCTS railtour ECS).