Ray The 1953 Campagnolo #12 catalog shows a set of dropouts #2009 'SERIE FORCELLINI PER CAMBIO CORSA, PARIS ROUBAIX,CON ATTACHO PER CAMBIO GRAN SPORT' with teeth to engage with a Cambio Corsa splined hub axle, and a derailler hanger to fit Gran Sport.
The 1955 #13 Catalog shows #1010 and #1010/1 dropouts with integral derailler hangers for Sport or Gran Sport deraillers.
DB Auckland, NZ
wheelman@nac.net wrote: Okay, I forgot this group takes things to the extreme and I was not clear in my request. I am asking again about when the MODERN TYPE rear derailleur hanger came into production. Not one that was added later with a torch and not the various types that hang off the chainstay. The one you see today hanging off the bottom of the rear right dropout.
Thanks Ray Homiski Elizabeth, NJ _______________________________________________
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