This exact clip is shown in a blue-covered Campagnolo Catalog (no number and undated) from Olympic Resources Inc. Address is (was?) 1000 West Loop North, Houston, Texas 77055 See page 47. The part number is 628 and the official description reads: "Front Changer Clip."
Ted Baer Palo Alto, CA
Peter Brueggeman <firstname.lastname@example.org> wrote: Might it be a shim to use in fitting a Campagnolo 28.6mm front derailleur to the smaller diameter metric 28.0mm French seat tube?Peter============================================ Peter Brueggeman La Jolla California United States America pbrueggeman(AT)ucsd.edu
They aided the grip of the earlier, thinner and more flimsy clamp bands, as seen on these 1955 shifters here:
Ciao, Mark Agree (always looking for an opening to show Torpados to the world) Southfield MI USA ~ ~ ~
Date: Tue, 15 Apr 2008 09:39:56 -0700 (PDT) From: Kevin Kruger To: classicrendezvous(AT)bikelist.org Subject: [CR]eBay Items For Sale === RARE CAMPY SINGLE CABLE STOP, NOODLE GUIDE & SHIFTER WEDGE
Just listed the following NOS 1950s-60s Campagnolo items on eBay that in my opinion qualify as somewhat rare (single downtube cable stop for BARCON use, single bottom bracket single cable "noodle" guide, and downtube shifter clamp wedge):
Honestly don't know how the shifter clamp wedge is used, unless intended for smaller-diameter frame tubing???
Kevin Kruger - Grantville, PA