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

• ST-III
• H-I
• H-II
• H-I

I believe that better labels might be:

• Sanko ST3
• Sanko H2
• Sanko H2
• Sanko H1

---

• Publisher: New Cycling
• Document: New Cycling May 1981 - '81 Derailleur Collection
• Date: May 1981
• Derailleur brands: Sanko
• Derailleurs: Sanko ST3, Sanko H1, Sanko H2