Argentina . 1930, Europe-Pan American Flight cover,. franked with 12c San Martin in combination with 20c ultramarine, 50c slate, 1p blue/red, 1.8p blue/lilac red, and 3.60p slate/blue "Zeppelin / 1er Vuelo 1930" overprints, tied to over by Buenos Aires (21 May) c.d.s., violet handstamped USA "Europe - Pan America / Round Flight" confirmation cachet, Friedrichshafen (Jun 6) and Berlin (Jun 7) backstamps, a scarce set of five on cover, striking and fine.. Cover (Image1)

Est. US$400-500

Argentina . 1930, Graf Zeppelin Europe - Pan American Flight cover,. franked with 5c San Martin in combination with four 50c slate and single 1p blue "Zeppelin / 1er Vuelo 1930" overprints, tied by Buenos Aires (26 May) c.d.s., with violet confirmation cachet, Lakehurst (May 31) Graf Zeppelin arrival backstamp, a scarce and visually-appealing franking, fine.. Cover (Image1)

Est. US$200-300