South West Trains Class 73/1.

SWT liveried No: 73109 'Battle of Britain 50th anniversary' & MK1 AB21/BSK No: 35465 on display at the South West Trains Bournmouth depot open day on Sunday 17th May 1998 at 11:47.
Alongside can be seen departmental EMU No: 930301.

Photo and Scan: Ross Aitken (aos@cableinet.co,uk).