The 1914-15 Siege of Przemysl
Air Mail cover 1914 (15 Nov.) wrapper to the Przemysl Fortress, bearing on reverse Turul type 10f. tied by "OSIJEK" c.d.s. and showing on front bilingual (Hungarian/German) "Return to sender - due to Military situation service suspended". Rare
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Air Mail cover 1914 (15 Nov.) wrapper to the Przemysl Fortress, bearing on reverse Turul type 10f. tied by "OSIJEK" c.d.s. and showing on front bilingual (Hungarian/German) "Return to sender - due to Military situation service suspended". Rare