C820 (51512, 59093 & 51500) passes Croome on 24 October 1985 with a mystery southbound working. There is nothing in the working timetable to indicate what this is, but my best guess is that it is the 5A72 15:25 Alstone Carriage Siding to Cheltenham Spa ECS, which has for some reason started from Worcester. If Alstone Siding was unavailable for any reason, the 5B29 14:17 Cheltenham Spa to Alstone ECS could have continued on to Worcester, in order to work back later as the 5A72, and then work the 2A72 15:30 Cheltenham Spa to Swindon service.