Entire letter canc. "ΚΟΥΜΗ" (type I) and linear "ΣΥΣΤΗΜΕΝΟΝ", transit postmarks "ΑΘΗΝΑΙ*24.ΙΟΥΝΙ.1842" and "ΠΥΡΑΙΕΥΣ*24.ΙΟΥΝ.1842", arr. "ΣΥΡΑ*27.ΙΟΥΝΙ.1842". Postage paid "45+45/90" (lepta). Rare.