Howard Hughes (right) with unidentified man before the flight of the second XF-11 prototype, April 4, 1947.

Typed onto a piece of paper given with the image: "Hughes' Plane Over Los Angeles, Cal. -- The world-girdling plane of Howard Hughes pictured from an American Airlines plane as it flew over Los Angeles as Hughes and four companions on the record-breaking flight arrive at Los Angeles for the ovation accorded them by proud Southern Californians. The Los Angeles City Hall is in the background. Credit Line (ACME) 8/2/38 NY

Lily Pons (left) and Howard Hughes (right). Text printed on an attached strip of paper: "Noted flier and his hostess at cocktail party Los Angeles, Cal. -- Howard Hughes, noted flier, with Lily Pons, singing star, as he attended the cocktail party given by Miss Pons at the Beverly Wilshire Hotel. Credit Line (ACME) 11/8/38 NY LOND PAR."

A view of Howard Hughes and others inspecting the construction of the Spruce Goose in San Pedro, California. From left to right, the men include: Wressey C. Cocue, Homer (Dave) Roe, Dave Graig, Dave Kuans, Glenn Odeuiru, Howard Hughes, Jack Jerman, Rea Hopper, Carl Baggerger, Bill Benny, Warren Reed, and Joseph Petrali.

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

Description given with photograph: "Howard Hughes in New York after making a high altitude flight from Los Angeles during which he tested a new two-ounce oxygen mask."