1. South America flight 1931, Zeppelin photo postcard Amsterdam - Recife with multiple franking 1 G Wilhemina at crew member Thasler in Pernambuco with confirmation stamp type I. on documents to South America flight was this confirmation stamp only on documents direct to Pernambuco mounted, therefore great rarity, at back offsets other confirmation stamp through moisture, in view of the rarity meaningless, photo expertize forester SBPV