The first few pages of early Campagnolo catalogs (e.g., Nos. 14, 15, 16 and particularly No.17) seem to indicate that "'C' in diamond" is a registered trademark of Campagnolo.
Lee Berg Palo Alto
Chuck Schmidt wrote:
>
> Andrew Grout wrote:
> >
> > Hello all; a couple of Campy trivia questions for your consideration. 1. On my Raleigh Pro ('72), I noticed that some of the Campy parts have a 'C' inside a diamond stamped on the part, e.g., the pedals. I remember someone once telling me that they understood that Carlton was a big buyer for Campy, and Campy marked parts intended for Carlton with the 'C.' True? 2. Also, the hubs on this bike only feature the "Campagnolo" script, while my '75 Moto Le Champion's hubs feature the "Record" in block print underneath the script. Is this a clue as to the vintage of hubs?
> >
> > Cheers,
> >
> > Andy Grout
>
> Andy,
>
> Yes, I too have heard that Raleigh/Carlton pedals were stamped with the
> C in the diamond.