37204 runs along the down relief line at Marshfield on Saturday 28 April 1984. As this doesn't remotely mach up with anything in the working timetable, I can only assume that it is either a special, or a late running 6V64 02:10 Albion to Waterston Gulf oil empties The other alternative is an extremely late running 7V89 22:23 Tonbridge or 01:45 Redhill to Llandarcy.