Entire letter canc. "ΠΥΛΟΣ*4.ΝΟΕΜ.57" in greenish blue (type III), via "ΑΘΗΝΑΙ*7.ΝΟΕΜ.57" in blue (type III), arr. "ΣΥΡΟΣ*10.ΝΟΕΜ.57"-month inverted (type III). Prepaid postage = 50 lepta. Rare.