Military Flight, Commandante de Pinedo, Sesto Calendas - Elmas, special card with special cachet "CROCIERIA AEREA DELLATLANTICO - SANTA MARIA" franked on both sides, cancelled Sesto Calende 1927-02-08 and Elmas/Cagliari 02-08 (Longhi 27MOa / 1621)
6; Flugpost; FLUGPOST INTERNATIONAL; Italien