An ex-works 50 021 at BREL Doncaster on the 17th June 1978. The locomotive received the name Rodney on the 31st of the following month at Laira depot; it is possible that this was directly after the machine was released from this Doncaster Works visit.

50 021  
Previous Identity (s) D421
Introduced May 1968
Withdrawn April 1990. Now preserved