Words on side of the fuselage says "F.C.Hall Oklahoma City Okla". Hall was the purchaser of this aircraft. Wiley Post was his personal pilot. The aircraft is preserved at the National Air & Space Museum, Udvar Hazy Center, Chantilly, Virginia."
This additional photo shows Wiley Post after his 1933 solo flight around the world, fuselage markings read:
Los Angeles to Chicago - 9 hrs. 9 min. 4 sec. - Aug. 27, 1930
Around the world - 8 days 15 hrs. 51 min. - June 23 to July 1, 1931
Around the world - 7 days 18 hrs. 49 min. - July 15 to July 22, 1933