Pioneer Flights. 1931 (January 15-16), Special Flight to Cagliari (Sardinia), Balbo card (produced for prospective flight to US in December 1930-January 1931), mixed franking representing three stamps of Vatican and Italian Air Post of 50c brown (on picture side), two Balbo etiquettes together with Cagliari ''16.1.31'' arrival ds on address side, VF and scarce, only 31 items flown, Est. $200-$250 (Image)

Pioneer Flights. 1931 (January 15-16), Special Flight to Tripoli, Balbo card (produced for prospective Trans-Atlantic flights), mixed franking of Vatican 30c dark blue on yellow network and Italian Virgil 50c brown, Italy-Brazil etiquette in blue and gold tied by Tripoli ''16.1.31'' arrival ds, VF, 70 items were delivered by this flight, Est. $200-$250 (Image)