With Didcot Power Station's coal stockpiles dominating the background, 56034 Castell Ogwr / Ogmore Castle approaches Foxhall Junction on 31 July 1986 with the 6A18 05:00 Robeston to Theale Murco oil tanks. Just about the worst possible photographic conditions - mid summer at around midday, with the sun at its highest point in the sky, putting the wheels in dense shadow.