[CR] Dating Campag SR Brake Calipers ?

(Example: Framebuilding:Tubing)

Date: Tue, 5 May 2009 21:09:41 -0700
From: "r cielec" <teaat4p@yahoo.com>
To: Classic Rendezvous <classicrendezvous@bikelist.org>
Subject: [CR] Dating Campag SR Brake Calipers ?

Ahoy ! Does anyone know how to date Campag Super Record Brake Calipers ? I've noticed slight variations among markings but, since I do not have a known matched set, I don't know what significance these slight variations may have. Thanks. Richard Cielec Chicago, Illinois; U.S.A.