National Coal Board North Durham Area No.41 (Kitson 2509, built 1883) in store at Derwenthaugh sidings in late 1969.  This loco was new to Consett Iron Comany as "A No.5".  
It was transferred to the National Coal Board in January 1947 when Consett Iron's coal mines were nationalised.  Even though it was the oldest of this class of locos to pass to the NCB it was the last to survive.  
It passed into preservation in 1972, and is now restored to Consett Iron Co. condition.  The loco behind (No.82) was not so lucky.  It was scrapped in March 1971.

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

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