Howard Hughes' flying boat docked near the waters of Los Angeles Harbor, taken July 16, 1947.

A picture of the crowd at a parade celebrating the completion of Howard Hughes' round the world flight. Typed onto a piece of paper attached to the image: "Parade - 7/15/38."

The XF-11 plane before its first flight at the Hughes Airport in Culver City, California.

Typed onto a piece of paper attached to the image: "New York hails heroes of World Flight, New York City --- In the greatest reception since Lindbergh's, Howard Hughes and his gallant companions paraded up Broadway today, almost smothered beneath New York's ticker-tape accolade recognizing their record-smashing world dash. Here's Hughes, (center back, seat), gazing up the tons of torn paper fluttering down on him and his comrades, following in the car behind. Beside Hughes on the left is Grover Whalen, head of the New York World's Fair, 1939. Credit Line (ACME) 7/15/38."

The black and white view of Howard Hughes, surrounded by crowds, after arriving completing his Around the World tour at Floyd Bennett Airfield in New York.

The black and white view of Howard Hughes, surrounded by crowds, after arriving completing his Around the World tour at Floyd Bennett Airfield in New York.

Transcribed from attached press release: HUGHES TOOL COMPANY Cornerstone of the industrial empire of Howard Hughes is the Hughes Tool Company of Houston, Texas, which last year produced more than half a million rock bits for drilling the kind of deep wells now producing 90 per cent of the world's petroleum. In the company's mechanical testing section (above) engineers test the products under conditions simulating actual drilling. Howard Hughes' father's invention of the rock bit is believed to be one of the most important industrial developments of the century; without such a tool we might still be living in a horse and buggy era."