- 7293 - Kuiper - October 1960 (est)
- 7294 - Holst - October 1960 (est)
- 7295 - Beugels - October 1960 (est)
- 7296 - Visser - October 1960 (est)
- 7297 - RIH Bustraan - October 1960 (est)
- 7298 - Rem - October 1960 (est)
- 7299 - Vossen - October 1960 (est)
- 7300 - Kroon - October 1960 (est)
