Howard Hughes (foreground) and S. P. Brown (bending over) examining the new Hughes rock bit head at the Hughes Tool Company plant.

The black and white view of the Lockheed 14 aircraft in Minneapolis, Minnesota. Description written on back of photograph: "World-fame drops on City out of blue, sunny skies: Fame came to the municipal airport and the city of Minneapolis in a flash of silver and a roar at 7:38 am, July 14, 1938 when Howard Hughes swooped to Earth in his Droning Silver Bullet on his record breaking round-the-world flight. Photo-courtesy "The Minneapolis Star" Board of Park Commissions. 325 City Hall Minneapolis Minn."

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.

Handwritten on the back of the image: "Talking to W.D. "Jim" Guthrive at Roosevelt Field. 7/18/38."

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.

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.