Just to add a slight confusion.........back when we sold them (1978), the Professional brakes were the one's Ian Hallam rode with the KP Crisps-SABA team of one rider but I only seem to remember them in silver and Black.
The Stratos Modolo came in silver, black, green, red and blue and those came with numbered callipers.......
I am starting a slow collection of SABA / Ian Hallam era stuff so am interested
You seem hard expert about this topic , so you would admit that the price is unbelievable.
It's just because i need to monetize for some projects.
So , if you're intereste , PM please!