Offcial cover canc. "ΤΗΝΟΣ" (type I), via "ΣΥΡΑ*7.ΔΕΚΕΜ.1841", addressed to "Προς την εν Κωνσταντινουπολει Πρεσβεια", arr. "CONSTANTINOPLE (TURQUIE)*25.NOV.1841". Rate marks on front for the ship carriage. Very fine.