56043 passes Walton Well Road, Oxford, on 23 August 1985 with what is presumably the 6M20 03:05 Stoke Gifford to Wolverton ARC stone train. If indeed it is 6M20, then it was two hours late, but there is nothing else in the working timetable anywhere near the time. Strangely, I saw this same loco at this very location five years later, on a similarly vague working.