BR Britannia 4-6-2 No 70052 Firth of Tay with a Sunday Manchester-Glasgow express climbing Beattock about 1 mile north of the station in May 1957.
Peter Kerslake adds: Polmadie's 70052 was undoubtably working hard up the bank even though it has a banking engine assisting.

Photo: W.J. Verden Anderson / Rail Archive Stephenson