Registered airmail cover canc. "ΑΘΗΝΑΙ*21.ΧΙ.36", arr. "WIEN*23.XI.36". Circular cachet "ΠΕΝ" and tape "ΕΛΕΓΧΟΣ ΣΥΝΑΛΛΑΓΜΑΤΟΣ". Sender Melingounakis, stamp dealer at that time. Miscut at top, still fine.