- 8502 - Bustraan RIH - October 1971 (est)
- 8503 - Bouma - October 1971 (est)
- 8504 - Smits, T. - October 1971 (est)
- 8505 - Schrijver - October 1971 (est)
- 8506 - Blijleven - October 1971 (est)
- 8507 - Mak - October 1971 (est)
- 8508 - van Cort - October 1971 (est)
- 8509 - Geskes - October 1971 (est)
- 8510 - Lucas - October 1971 (est)
- 8511 - Bustraan RIH - October 1971 (est)
- 8512 - Bustraan RIH - October 1971 (est)
- 8513 - Bustraan RIH - October 1971 (est)
- 8514 - Bustraan RIH - October 1971 (est)
