Hi Carsten, thanks for your post, and everyone elses.
Having pointed out that this part is off a S2 car I have now found it on the SNG Barratt website. Here it is:
They appear to be out of stock at the moment and I am just waiting to hear when (if) they will be getting any more. I shall let you know.
I still don't understand why this S2 part is fitted to the very nice 1966 Opal Silver Blue S1 car as featured in the "Factory Fit" section. Does anyone know? There must be a good answer.
Mystified
Cheers
Steve