A broadside of 850 'Lord Nelson' at Ais Gill summit going well after climbing 'the long drag' up from Appleby. Passengers onboard had enjoyed steam haulage from Carlisle that would finish at Skipton for 4498 'Sir Nigel Gresley' to take the return train to Carnforth. 850 was one of just sixteen members of the class built at Eastleigh in 1926. Initially, their performance was poor but Maunsell persevered with his design and after a number of major adaptions they finally ended up producing the power expected of them. Under British Railways the locomotive became a Class 7P and carried the number 30850 being withdrawn in 1962 and is the only example preserved.
There is an audio recording of this event on my youtube channel, see...
https://youtu.be/0CmKCG9W2J0