In a message dated 12/15/03 7:34:07 AM Pacific Standard Time,
heine93@earthlink.net writes:
> I wouldn't be surprised if this had been discussed before, but
> couldn't find it on Chuck's excellent web site (velo-retro.com), nor
> in the CR archives:
>
> When did Campy change from "Open C" to the later "Closed C" on shift
> levers, QR levers, etc.
>
> Italophile today...
>
Sometime between 1958 and 1961. It varied with the parts. The last Gran Sport
derailleur with the open C on the back was version 3, produced from 1953
through 1955. The wheel QRs ran to at least the intro of the all alloy hubs in
1958. The likely change date was 1958, but the Gran Sport items were still
catalogue items for awhile. I have some NOS 1958 low flange 3 piece hubs with the
open C skewers.
Stevan Thomas
Alameda, CA