Entire letter canc. "CONSTANTINOPLE TURQUIE*17.OCT.1839" (French P.O.) and boxed "PD" to Nafplion. transit post marks "ΠΥΡΑΙΕΥΣ*11.ΟΚΤΟΜ.1839" and "ΑΘΗΝΑΙ*11.ΟΚΤΟΜΒ.1839", arr. "ΝΑΥΠΛΙΟΝ*13.ΟΚΤΩΒ.1839". Cachet "ΥΓΕΙΟΝΟΜΕΙΟΝ ΠΕΙΡΑΙΩΣ". Postage markings on reverse.