Classic 1991 Campy Record rear derailleur. It is suited for 7 and 8-speed road bicycles. The barrel adjuster appears to have been replaced with another Campagnolo version. The pulleys have loose ball bearings and would benefit from fresh grease. The derailleur is complete with normal cosmetic signs of use.
Originally established in 1941 by a Six Day Track racer Oscar Juner & his wife Gay. American Cyclery is the oldest full service bicycle shop in San Francisco and continues to offer a world class selection of bicycles, parts, accessories & unique cycling ephemera.