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  • Urkunden Prüfgebiet: Britisch Columbia

    Prüfer Art des Attestes Katalog KatalogNr.
    Vincent Graves Greene, Philatelic Research Foundation (Prüferkommission) Attest Scott 10
    The Philatelic Foundation, (Prüferkommission) Attest Scott 12
    Vincent Graves Greene, Philatelic Research Foundation (Prüferkommission) Attest Scott 15
    APS, (American Philatelic Society) (Prüferkommission) Attest Scott 18
    Gratton, Richard (AIEP (Association internationale des experts en philatélie)) Attest Scott 9