LNER J39 0-6-0 No 1491 in c1930. A bit of detective work has identified the script on the end of the works building behind as "Power-Gas Corporation and Ashmore, Benson, Pease & Co. Ltd.", and it's therefore their Parkfield Works in Stockton-on-Tees.

The cables supported by masts and spans in the background are interesting. Are they associated with the NER Teesside electrification?

Photo: Wm. Rogerson / Rail Archive Stephenson