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Letter sent from Copenhagen to Friedrichstadt in Slesvig 24 October 1864, franked with 4 sk. 1864 tied by numeral “1” alongside København CDS. The letter was during the 1864-war after Slesvig was occupied by Prussian troops and in this period there were no postal arrangement between Denmark and Slesvig. In this case, the letter is not charged 1 1/4 Sch. C by the addressee.