Registered cover fr. with 30l litho and 5l "E T" stamp canc. "ΣΥΡΟΣ*1.ΜΑΙ.18", arr. "ΑΘΗΝΑΙ*4.ΜΑΙ.18". Boxed "PASSED AEGEAN POSTAL CENSOR SYRA" and tape "OPENED BY CENSOR 5" (British). Receivers name deleted.