Entire letter canc. "ΥΔΡΑ*18.ΜΑΙΟΣ.1859" (type II), linear "Π.Ε.Δ.", via "ΠΕΙΡΑΙΕΥΣ*19.ΜΑΙ.1859", arr. "TRIEST*22/6". On reverse "15/3" (kreuzer) for Looyd and Austrian inland fees. Very fine and rare.