A view of Howard Hughes installing a radar safety system for passenger planes in Culver City, California.

A view of Howard Hughes installing a radar safety system for passenger planes in Culver City, California.

A view of Howard Hughes' Flying Boat being prepared for a test run in Long Beach, California.

Description given with photo: "Prepare to Move "Hercules" Wing, Culver City, Calif. -- One of the two 34-ton wing sections of Howard Hughes' eight-engined Hercules, world's largest flying boat, is put on house-moving dollies in Culver City, Calif., before beginning the 28-mile journey to Los Angeles Harbor, where the mammoth airplane will be assembled for its first test flight, supposedly around the first of the year. A two-day trip will see the wing- 19 feet high, 49 feet wide, 160 feet long - at the $200,000 graving dock at Terminal Island, Calif., which was built specifically for the assembly of the craft. Note comparative size of men working on the wind. Credit (ACME). 6-12-46."

Typed onto a piece of paper attached to the image: "As Hughes Visited Washington To Thank Cordell Hull, Washing, D. C. -- Police escorting Howard Hughes holding hat, through the admiring throungs at the Washington Airport as the intrepid flyer and his four companions on his Round-The-World flight came to the Capital, July 21st, to personally thank Secretary of State Cordell Hull for his cooperation in clearing their take-offs on their flight. Credit Line (ACME) 7/21/38."

A view of Howard Hughes attending an informal press conference in Culver City, California, after Hughes left the Senate War Investigating Subcommittee hearing in Washington.

Typed onto a piece of paper attached to the image: "Scene at Floyd Bennett Field as Howard Hughes and his crew landed after completing a round the world hop. 7-14-38. (Press Association)."