• Urkunden Prüfgebiet: Neuguinea

  Prüfer	Art des Attestes	Katalog	KatalogNr.
  BPA, Expertising Limited (Prüferkommission)	Attest	Stanley Gibbons	83
  The Philatelic Foundation, (Prüferkommission)	Attest	Scott	C 58
  Ceremuga, Krzysztof (Sonstiges)	Attest	Stanley Gibbons	O11
  Ceremuga, Krzysztof (Sonstiges)	Attest	Stanley Gibbons	O12
  Ceremuga, Krzysztof (Sonstiges)	Attest	Stanley Gibbons	O12
  Ceremuga, Krzysztof (Sonstiges)	Attest	Stanley Gibbons	O21
  Ceremuga, Krzysztof (Sonstiges)	Attest	Stanley Gibbons	O5