Cover fr. with 1l. claret-brown and 5x5l. green canc. "ΖΑΚΥΝΘΟΣ (111)*29.ΑΥΓ.", arr. "ΑΡΓΟΣΤΟΛΙΟΝ (ΚΕΦΑΛΛ) (110)*31.ΑΥΓ.66". Postal rate of 26l. between Ionian islands. Disinfection slits. Very fine. (Hellas 15d+17a).