Entire letter on letter sheet printed "ΒΑΣΙΛΕΙΟΝ ΤΗΣ ΕΛΛΑΔΟΣ/ΝΑΥΤΙΚΟΝ ΔΙΕΥΘΥΝΤΗΡΙΟΝ/ΕΝ Πόρω," written "τη 16 7 βρίου 1836", mailed from Athens canc. "ΓΕΝΙΚΟΝ ΤΑΧΥΔΡΟΜΕΙΟΝ ΑΘΗΝΑΙ*18.ΣΕΠΤΕΜ.1836" to Skiathos island. Cachet "ΝΑΥΤΙΚΟΝ ΔΙΕΥΘΥΝΤΗΡΙΟΝ". Signed by J. Sahtouris. Very fine and scarce.