Entire letter inscribed "Μέσον Λαμίας" canc. "ΣΥΡΑ*25.ΦΕΒΡΟ.1837" and oval cachet "ΠΛΗΡΩΜΕΝΟΝ" (paid) to Triest. Transit postmark "ΓΕΝΙΚΟΝ ΤΑΧΥΔΡΟΜΕΙΟΝ ΑΘΗΝΑΙ*1.ΜΑΡΤ.1837", arr. linear "TRIEST*8.APRI.1837". Lazaretto cachet "SIGIL SANITATIS SEMLIENSIS" and wax seal "SEMLIN...". Postage markings "1+.75+.1=1.85" and "20+92/112".