Aha! Found them at last. I bought these badboys back in 1985 and until I retired them 10 years later, they ferried me to many an also-ran performance in a time trial.
Any use?
(The sellotape is there to keep all the gubbins together)
I'm after some grey... do you have a pic ( I have a pair but seem to be missing a washer or something between the body and cup that sits on the braze-on )