[CR]Mystery shifter part


Example: Framebuilders:Pino Morroni
Date: Mon, 20 May 2002 15:57:31 -0700 (PDT)
From: "Craig Sandvik" <distracticon@yahoo.com>
To: classicrendezvous@bikelist.org
Subject: [CR]Mystery shifter part

What is the domed hinged part attached to the right downtube shifter on this Della Santa?

http://www.campyonly.com/retrobikes/della_santa.html

There's also a nice shot of the Porta Catena. I think the trick use of this piece would be on road fixies with flip-flop wheels.

Curious,
Craig Sandvik
Berkeley, CA