My random translations of the photo captions, clockwise from top left are:

• Rally
• Super Record
• Super Record
• Nuovo Gran Sport

• Publisher: New Cycling
• Document: New Cycling May 1981 - '81 Derailleur Collection
• Date: May 1981
• Derailleur brands: Campagnolo
• Derailleurs: Campagnolo Rally, Campagnolo Super Record (4001 PATENT-77), Campagnolo Super Record (4001 PAT.80), Campagnolo Nuovo Gran Sport