Ravenglass and Eskdale Railway "Northern Rock"

With passenger numbers increasing in the early 1970s, the decision was taken by the railway company to acquire another steam loco to supplement the existing fleet. After undertaking trials with the Romney, Hythe & Dymchurch Railway no. 2, Northern Chief in 1972, it was decided that the new loco would be a 2-6-2 narrow gauge online design to match the profile of the new closed saloons entering service on the railway, and incorporating the best features of a number of existing locomotives.

-Wikipedia