Thank you to the Miami Springs Historical Museum for displaying this historic image. The Curtiss Flying Boat was the first aircraft to cross the Atlantic Ocean.
The certificate states:
Curtiss NC-4
Commanding Officer LCDR Albert C. Read, USN
Pilots: Lt. Elmer F. Stone, USCG and Lt.(jg) Walter Hinton, USN
Crew: Lt. James L. Breese, USN; Ens. Herbert C. Rodd, USN; and Eugene S. Rhoads, USN
The Curtiss NC-4 was the first airplane to complete a trans-Atlantic flight. On May 27, 1919, the flying boat set down on the water of the Tagus River in Lisbon, Portugal. The 4000-mile flight from Rockaway Beach, New York, had been accomplished in nineteen days. The NC-4 is part of the collection of the National Air and Space Museum and is currently on loan to the Naval Aviation Museum, Pensacola, FLorida.