Marcus,
I have one from my mid-line (531 db main tubes) Falcon purchased around 1968 or 69. I upgraded it to a Nuovo Record and added Zeus crank, then the bike got stolen. The derailleur is nearly complete. I think I cannibalized the idler wheels for a brass Record, but I do have the original wheels.
We can compare parts if you'd like, seein' how you're local.
Ken Freeman
Ann Arbor, MI
> I have an old Campagnolo Gran Sport rear derailleur. It is chrome plated
\r?\n> bronze. I know almost nothing about these, but my sense is that they
\r?\n> developed very rapidly in the 50s, sometimes changing within a single
\r?\n> year. Is there a resource for understanding the evolution of these
\r?\n> derailleurs? I found John Siemsen's Pave album in Wool Jersey, but that
\r?\n> doesn't document the history of the derailleurs.
\r?\n>
\r?\n> Best regards,,
\r?\n> Marcus Helman
\r?\n> Huntington Woods, MI