A view looking down Broadway during the parade procession to celebrate Howard Hughes' completion of his round-the-world flight.

A view looking down Broadway during the parade procession to celebrate Howard Hughes' completion of his round-the-world flight.

The black and white view of Howard Hughes in Minneapolis, Minnesota. Description printed on photograph's accompanying sheet of paper: "Howard Hughes at Minneapolis to refuel before leaving for Floyd Bennett Field to complete a round the world flight."

The black and white view of a crowd of people awaiting the arrival Lockheed 14 aircraft at Floyd Bennett Airport in New York. Typed onto a piece of paper attached to the image: "Tumultuous welcome awaits world fliers here Floyd Bennett Airport, N.Y. -- Policemen lined up on the field here awaiting the arrival of Howard Hughes and his companions, New York bound from Minneapolis, on the last leg of their epochal Round-The-World flight. By noon, a crowd of 6,000 persons had gathered at the airport, and it was increasing by the moment. Credit line (ACME). 7/14/38."

Description printed on photograph's accompanying sheet of paper: "New York reception for Howard Hughes and his four companions after they completed a round the world flight. 7/15/38."

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."

Howard Hughes (left) Noah Dietrich at a Hughes Tool Company celebration in Houston, Texas in 1939.