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

• P2
• Rod type
• W Axis (?)
• Super 60

I think that the correct labels might be:

• Cyclo Benelux Sport P2
• Cyclo Benelux Chain Shifter - rod control
• Cyclo Benelux Chain Shifter - cable control
• Cyclo Benelux Super 60

• Publisher: New Cycling
• Document: New Cycling May 1981 - '81 Derailleur Collection
• Date: May 1981
• Derailleur brands: Cyclo Gear Company
• Derailleurs: Cyclo Benelux Sport P2, Cyclo Benelux Super 60