Entire letter canc. "LONDON*14.APR.1840", inscribed "via Marseilles", transit postmark "ANGL. 1 CALAIS*16.AVRIL.40", arr. "ΣΥΡΑ*18.ΑΠΡΙΛ.1840". Oval "P-D" (Paid to Destination) and "Π.Ε.Μ.Σ." on arrival (Πληρωμή Εξωτερικού Μέχρι Συνόρων), marked "2/8 1/2" (d), rate for a letter up to 1/4oz by French Packet via France and "10" (lepta) Greek inland rate to be collected upon arrival. Very fine.