I'm rather dissapointed that much of a day has gone by and not a person that I've seen has mentioned the article in Bicycle Quarterly that described in extreme detail the development of the Campagnolo Gran Sport deraillieurs. In fact, I've seen little mention of the article in general since it appeared in the Winter 2003 issue. I'd say it was perhaps the best researched, photographed, and documented article on a vintage component I've seen - yet few folks seem to care about something with accurate details and footnoted references.
For those who do care, go to http://www.bicyclequarterly.com and the backissue with the article appears to still be available for purchase.
Yes - I am biased perhaps as I'm good friends with the publisher, but when I see that folks can't get it together to cite a key source with the best info on a topic many of us at least claim to hold dear, I get rather frustrated.
Mike Kone in Boulder CO
> 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