Entire letter from Syros with administrative mark "ΒΑΣΙΛΕΙΟΝ ΤΗΣ ΕΛΛΑΔΟΣ*ΔΙΕΥΘΥΝΣ. ΤΑΧΥΔΡΟΜ. ΣΥΡΑΣ" (same post mark shown on book cover of Mr. Raftopoulos) with oval "ΠΛΗΡΩΜΕΝΟΝ" and manuscript postage rates "30" (lepta) on front, arr. "ΝΑΥΠΛΙΟΝ*11.ΟΚΤΩΒ.1834". ONLY ΤWΟ LETTERS KNOWN WITH THIS POSTMARK, THE OTHER ONE DATED AUG 1834. Item of the gratest rarity.