Documents sorted by date:

American Bicyclist - Vista advert

1. Date: 1973
   

2. Derailleur brand: Vista
   

3. Derailleur: Vista V GT
   

American Bicyclist - Campagnolo advert

1. Date: 1976
   

2. Derailleur brand: Campagnolo
   

3. Derailleur: Campagnolo Super Record (4001 1st style)