Thomas E Ward wrote:
>
(cut)
> One other bit of information--possibly a clue to something--is that the
> roller guides for the derailleur cables, brazed onto the top of the bb
> shell, include one with two rollers (for the rear, of course). Wasn't one
> of the early Campagnolo rear derailleurs a twin cable type? I've never
> seen one, but the Campagnolo timeline mentions it. Could this help to
> justify the presence of the Campagnolo dropouts as original?
"1950 - Campagnolo employs 123 workers. The Gran Sport twin cable, parallelogram rear derailleur prototype is shown at the Milan trade show."
This was a prototype and never reached production.
The two rollers on your frame would be for the twin cable Simplex or Huret derailleurs from the mid-1950s.
Chuck Schmidt South Pasadena, Southern California http://www.velo-retro.com (Timeline, Reprints and T-shirts)
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