This page may show, clockwise from top left:

• A DNB pull-chain model
• DNB 66
• A DNB front derailleur
• A DNB copy of a Campagnolo Gran Sport

• Publisher: New Cycling
• Document: New Cycling May 1981 - '81 Derailleur Collection
• Date: May 1981
• Derailleur brands: DNB
• Derailleurs: A DNB pull-chain model, DNB 66, A DNB copy of a Campagnolo Gran Sport