Cover fr. with 10sld Austrian Levant stamp canc. "PREVESA**26/4/74" via "ΚΕΡΚΥΡΑ*14.ΑΠΡ.74", arr. "ΖΑΚΥΝΘΟΣ*17.ΑΠΡ.74" where fr. with 20l. blue to pay the Greek internal rate and canc. "111". Cover folded horizontally. (Hellas 41d).