Argentina. Antoine de Saint-Exupery Pioneer Flight Rivadavia - Belgrano: October 30-31, 1929, cover franked by three values, tied by Rivadavia ''30.OCT.29'' ds, red confirmation and Belgrano ''31.X.29'' arrival markings, mostly VF, several expert's hs on reverse, 70 items were carried by this Saint-Exupery's flight, Muller #61, 4,500 points (Image)