Description given with photo: "Mexican President Greets Visitors, Mexico City, Mex. -- Howard Hughes (left), millionaire aircraft manufacturer and movie producer, and Cary Grant (right), Hollywood screen star, who made a plane trip together to Mexico City, are pictured with A.C. Blumenthal (gesturing), famous hotelman and President Miguel Aleman at the National Palace. Credit Line (ACME). 2/18/47."

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

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 installing a radar safety system for passenger planes in Culver City, California.

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.