United States. Howard Hughes Record Flight Around the World: July 10- 14, 1938, stationery cover 6c orange, bearing additional franking of US, France and Russia with appropriate confirmation markings and date stamps, fresh and VF. Howard Hughes and crew flew on an Airplane ''Lockheed 14'', the flight took 91 hours, with stops at Paris, Moscow, Omsk, Yakutsk, Fairbanks, Minneapolis and return to New York, AAMC TO1307, Est. $750-$1,000 (Image)