Peter Kerslake says "With a 2251 class Collett 0-6-0 behind the tender Machynlleth's Dukedog 9005 working as pilot is about to pass Barmouth South signal box, just out of shot on the extreme right of this view. Platform 4 on the left is the excursion platform used principally for southbound services to Dolgelley and weekend workings to Machynlleth."