East corner of basement in Boulder City Museum.

The black and white view of a crowd of people awaiting the arrival of Howard Hughes in his Lockheed 14 aircraft at Floyd Bennett Airport, New York. This final landing for Hughes marked the end of his Round The World flight.

Howard Hughes getting out of cabin door of Lockheed-14 at the Floyd Bennett Airport in New York in 1938.

The black and white view of Howard Hughes and his crew being surrounded by crowds as they exit the Lockheed 14 aircraft after finishing the Around the World flight at Floyd Bennett Airfield in New York. Description printed on photograph's accompanying sheet of paper: "Hughes reception at Floyd Bennett Field 7/14/38 (Press Association"

Long shot of the Lost City site (Pueblo Grande de Nevada), near Overton, Nevada, with the northwest arm of Lake Mead in the distance. The area is near the ruins of St. Thomas, Nevada, another nearby extinct town, submerged by Lake Mead.

Transcribed from press release attached to back of photo: "NEW PHOTO PLANE TEST-FLOWN CULVER CITY, California, July 7 -- Howard Hughes, who designed and built the new FX-11 reconnaissance plane in conjunction with Air Materiel Command engineers, sits in the pilot's bubble-glass canopy preparing for the first test flight. One of the world's fastest long-range photo planes, the XF-11 can attain a speed of more than 400 miles per hour, Army officials said. It is powered by two 3000-horsepower radial engines with eight-bladed contra-rotating propellers. Outstanding features include a full-span flap, unique eight-camera layout, and exceptionally fast take-off." Transcribed from photo sleeve: "Howard Hughes sits in the cockpit of the XF-11, a reconnaissance plane that Hughes built and designed in conjunction with Air Materiel Command engineers. Hughes is preparing for his first test flight in Culver City, California July 7, 1947.