25.5.31 Mirabella Bay (Irakleion)-Paris registered cover fr with 3dr+5drLandscapes canc. "ΗΡΑΚΛΕΙΟΝ*24.MAI.31" to New York. Boxed "PAR AVION/JUSQA PARIS" and special cachet "IMPERIAL AIRWAYS/FIRST FLIGHT HERKLEON (CANDIA) CRETE TO PARIS & LONDON", via "PARIS*27.V.1931", arr. "NEW YORK*6.4.1931". (Hellas FF161C).