37668 brings up the rear of the 3S59 09:00 Hereford to Swindon Transfer Rail Head Treatment Train as it approaches Chaddington Lane, Wootton Bassett, on 19 November 2022. 66846 is the lead loco. This is the second time in this RHTT season that loco shortages have forced the hiring in of this West Coast Railways loco. It was running 20 minutes early, which was fortunate, as at the booked time the sun was starting to fade out into high cloud that was rolling in from the west.