National Coal Board Northumberland Area No.49 (Stephenson & Hawthorn 7098, built 1943) entertains Durham University Railway Society in June 1972 at Backworth Loco shed.  
The loco is now preserved at Marley Hill on the Tanfield Railway.

Photo and scan by Les Richardson (les@cirsel.freeserve.co.uk)

http://www.cirsel.freeserve.co.uk/trains.htm