Viner crosses and stars with a photo of your chainstays
Basically, the Special Professional was the top of the range, it had Star (Stella) cut out lugs (including a massive cut out star on the bottom bracket shell) and was built with Columbus tubing (more than likely SL). These were the frames that were usually exported to the UK and US.
Last edited by bulldog1935; 08-08-16 at 12:43 PM.