Prepaid entire lettter fr. with 3x20l. sky-blue (single and vertical pair/pos.57+67-pos.67 plate flaw) and 10l. red-orange (pos.117) canc. "ΧΑΛΚΙΣ*13.ΑΥΓ.71", via "ΑΘΗΝΑΙ", arr. "TRIEST*1/9/71". Stamps with faults but still fine. (Hellas 26a+35a).