Official entire letter ςριττεν "21 8βρίου 1856", canc. "ΞΗΡΟΧΩΡΙΟΝ" (type I) addressed to "Νομάρχην Ευβοίας". Two-line cachet "ΕΠΑΡΧΟΣ ΞΗΡΟΧΩΡΙΟΥ" and "ΕΠΑΡΧΕΙΟΝ ΞΗΡΟΧΩΡΙΟΥ" on flap. Mailed postage free. Very fine and scarce.