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Urkunden Prüfvereinigung: Sonstiges
Prüfer Art des Attestes Katalog KatalogNr. Bühler, Georg (Sonstiges) Attest Michel 25 y Marchese, Giuseppe (Sonstiges) Attest Sonstige 251 Gibbs, Robert M (Sonstiges) Attest Stanley Gibbons 251 a Gibbs, Robert M (Sonstiges) Attest Stanley Gibbons 253 Tillard, Jean-Jaques (Sonstiges) Attest Yvert et Tellier 253 D Gibbs, Robert M (Sonstiges) Attest Stanley Gibbons 254 a Tillard, Jean-Jaques (Sonstiges) Attest Yvert et Tellier 255 A Gibbs, Robert M (Sonstiges) Attest Stanley Gibbons 255 n