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Urkunden Prüfvereinigung: Sonstiges
Prüfer Art des Attestes Katalog KatalogNr. Sydney Philatelic Research, Drury, Michael (Sonstiges) Attest Scott O 125 Campbell, Paterson Ltd. (Sonstiges) Attest Stanley Gibbons O 128 b Scheller, Pascal (Sonstiges) Attest Stanley Gibbons O 45 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 O337b