My information, from soneone who has been in the bike trade for years, is that Super Record brakes always had the aluminum alloy brake shoes and that this was the only difference in the callipers between Record and Super Record. Super Record later went to different callipers with "Campagnolo" in script, which then metamorphosed into Cobalto, with different levers, when Delta brakes were found to be useless in their original incarnation.
I have observed that Super Record brake levers were produced on at least 2 different sets of tooling (different suppliers?). They are a bit different with respect to the positioning and form of the holes, although the number of holes is the same. There are other minor differences in the round bit that holds the cable end nipple (whatever it's called). My guess is that at some point Campagnolo changed suppliers or that the original tooling expired and needed replacement.
Hugh Thornton Cheshire, UK
In a message dated 21/06/04 13:25:56 GMT Daylight Time, Raoul.L.Delmare@worldnet.att.net writes:
> Good One !!
> I forgot about that difference .
> Were they always aluminum alloy , from 1973 - 1987 ?? Right from the
> start of Super Record ??
> Raoul Delmare
> Marysville Kansas U.S.A.