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

• -
• Prestige Professional 1964
• -
• Prestige 1963

I think that the correct labels might be:

• Simplex Prestige (537)
• Simplex Prestige Criterium
• Simplex Prestige Criterium (637)
• Simplex Prestige

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• Publisher: New Cycling
• Document: New Cycling May 1981 - '81 Derailleur Collection
• Date: May 1981
• Derailleur brands: Simplex
• Derailleurs: Simplex Prestige Criterium, Simplex Prestige Criterium (637), Simplex Prestige, Simplex Prestige