50770 | 59150 | 50803 | Noted March 1981 |
105 372 in Edinburgh Waverley on the 12th February 1983. It has an Ayr depot sticker on the cab front, and what seems to be a white 'experiment' plate on the lower bodyside to the right of the cab door. Stuart Mackay.
Do you have any images of the set you can add?