1930 (May 24 - June 6), South America Flight postcard and cover, each one franked by air post semi-official stamps for Zeppelin Flights of 5000r green or 10,000r red, first one sent from Recife (28 MAI) to Friedrichshafen (receiver 6.6), the other one - from Rio (24 MAI) to Recife (26 MAI), flight cachet and arrival markings, mostly VF, Sieger #59A, B, Est. $200-$250 (Image)