This is a one-sided philatelic souvenir card commemorating the 50th anniversary of the LZ 127 Graf Zeppelin's first flight to America. It was produced by Philatelistisches Büro Rau in Germany.
The LZ 127 Graf Zeppelin was a German passenger-carrying, hydrogen-filled rigid airship that became the most successful zeppelin of its era. On October 11, 1928, it departed Friedrichshafen, Germany, on its first intercontinental voyage, arriving at the Naval Air Station in Lakehurst, New Jersey, on October 15. The return flight departed Lakehurst on October 29, 1928, successfully completing the historic transatlantic round trip and cementing the airship's legacy in aviation history.
This is a clean, visually appealing piece for collectors of zeppelin postal history, aviation topicals, or German philately.