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Keywords from Image Description:
Danzig Flugpost. Briefmarkenbeschreibung Flugpostmarken Air mail stamps Ausgabepreis Mark First Day of Issue Erstausgabetag Januar MichelKatalogNr Danzig scanned by NobbiP Buchholz PDoldauto PL see also series File Danzig Flugpost and following up to number for same color and value number to Philately Flugzeug ber