Hungary, 1936 Zeppelin Olympic Flight. Airmail cover originating from Hungary franked with 1936 Hungarian 10f-80f Airmails stamps tied by "Budapest/1936 Jul. 29" postmarks with magenta Zeppelin Olympic flight cachet below, backstamped two different "Berlin-Zentralflughafen" cds of 30.7.36 and 1.8.36, 52f stamp with small pre-use tear, Very Fine, reported to be one of eight known Hungarian cover carried on this flight. Estimate  $500 - 750. $0 (Image)