The loco in the above image is RSH 7673, S & L 62.
The above 3 images are of the Gretton brook engine shed. All taken on 19 April 1955. Northampton archives centre.
This loco belonged to the United Steel Co, Mining Division and was used in the Exton Park quarry area. It could be any one of the numbers 10-13 in their fleet, that were built by the Yorkshire Engine Co in 1954.
The last 2 remaining locos near cranford shed , Further details unknown Northants archives.
The ironworks loco going under the bridge under Cranford road. Northants archives.
Lowick
View of old railway cutting running from Pit .”looking North from Pit”