Entire letter with text pre printed "ΤΟ ΔΙΟΙΚΗΤΙΚΟΝ ΣΥΜΒΟΥΛΙΟΝ ΤΗΣ ΕΛΛΗΝΙΚΗΣ ΑΤΜΟΠΛΟΙΑΣ" printed on front "IL CONSIGLIO AMMINISTRAZIONE DELLA NAVIGAZIONE A VAPORE ELLENICA" canc. "ΣΥΡΟΣ*15.ΔΕΚΕ.58" (type III) and oval cachet "AGENZIA DELL LLOYD AUSTRIACO/Sira" (weak), arr. "TRIEST*4/1/1859". Postage marking "28" (Kreuzer) for the Lloyd fee. Fine and very rare.