Carlisle no. 4 signal box, with a class 50 passing, on 24th July 1972. The resignalling is well underway, ahead of electrification, with the new signals in place but not yet in use.
Location: Carlisle
Original line: Caledonian Railway
Photographer: Doug Nicholls
Contact photographer: Doug Nicholls
Date: 14/07/1972
Image number: 88337