• 6975 - Heerlen - March 1956 (est)
  • 6976 - Put - March 1956 (est)
  • 6977 - Messer - March 1956 (est)
  • 6978 - Kuipers - March 1956 (est)
  • 6979 - Oppers - March 1956 (est)
  • 6980 - Smits - March 1956 (est)