History Making Flights from 1928-1933 As luxurious as any ocean liner, Zeppelin dirigibles were the envy of sophisticated travelers and the pride of the Third Reich. Invented by a man who once served in the Union Army during the U.S. Civil War, they offered spaciousness and opulence unrivaled by any aircraft to this day. These scarce flight covers bear official German and U.S. cancellations and cachets - stamps may vary. Genuine pieces of aviation history!