it is a Vintage Campagnolo Croce d'Aune Rear Derailleur. Steven Willis The Bike Stand 1778 East Second Street Scotch Plains NJ 07076 908-322-3330 http://www.thebikestand.com
>I just purchased this rear derailleur.
>
>
>
> Ebay Item # 290291237640
>
>
>
> I received it today. It is before indexing? On topic? It produced a
> giggle or two and is fun in a weird R. Goldberg way. What is it? Does
> anyone have an instruction page? It is going to be used on a pretty blue
> Bottecchia that has a muttly assortment of Campagnolo that I like or think
> is just odd.
>
>
>
> Thank you,
>
> Howard Darr
>
>
>
> Kinsman OH USA