L-R: Alexander Troyanovsky (Soviet Ambassador to the U.S.) and Howard Hughes at the Moscow Airdrome, Moscow, Russia, July 12, 1938. Original item may indicate alternate date: 7/2/38.
Transcribed from back of photo: "Howard Hughes (in cockpit) warms up the XF-11 for its initial test flight. It is one of the world's fastest long-range photographic planes, July 7, 1946."