Urkunden Prüfgebiet: Venezuela

Prüfer	Art des Attestes	Katalog	KatalogNr.
Moorhouse, Brian (Sonstiges)	Attest	Scott	1 a
Holcombe, Peter (Sonstiges)	Attest	Stanley Gibbons	140; 199
Paaskesen, Erik (Sonstiges)	Attest	Michel	17 I
Holcombe, Peter (Sonstiges)	Attest	Stanley Gibbons	2
Meri, Pedro (Sonstiges)	Attest	Michel	20 II a
Chiavarello, Giovanni (Sonstiges)	Sonstiges	Michel	20; 21 H
Moorhouse, Brian (Sonstiges)	Attest	Scott	3
Eichele, Martin (BPB (Briefmarkenprüfstelle Basel))	Attest	Scott	3 b