U.S. and Worldwide Stamps and Postal History

1938 (July 10) Howard Hughes Around the World flight, postal stationery 6c legal size envelope with additional 6c franking, also French and Russian adhesives added at the prospective stops at Le Bourget and Moscow, appropriate cachets, tiny cover tear at top away from the stamps, still v.f., with the original letter from John Bergen to Harvey Evans, dated December 11, 1939 ("I am sending you herewith a cover of the Howard Hughes flight around the world. This cover was never offered for sale and was distributed to his friends only, so I am sure it will make a nice addition to your stamp collection")
Estimate: $500