Crowd of people watching Howard Hughes arrive at the Washington Airport in Washington D.C.

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.

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.

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.

Howard Hughes in the Lockheed 14 in Los Angeles, California. Typed on a piece of paper attached to the image: "Howard Hughes off on first leaf of flight to Paris. Los Angeles, Cal. -- Howard Hughes, Millionaire oil man and speed flyer, at the controls of his huge Lockheed "Flying Laboratory" as it took off from here for its leisurely flight to New York, from where Hughes and his crew will fly to Paris and perhaps around the world. 7/4/1938 Credit line (ACME)."

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.

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.