Image of an aerial view of Boulder City.

Image of an aerial view of Boulder City.

Image of an aerial view of Boulder City.

Transcribed from attached press release: "HUGHES ROCK BIT PRODUCTION more than 500,000 rock bits produced last year by the Hughes Tool Company, Houston, Texas, for drilling the kind of deep wells which now produce 90 per cent of the world's petroleum. The rock bit was invented by Howard Hughes' father and the resulting business became the cornerstone on which Howard Hughes built his industrial empire. The machinist above is performing an operation on the cones which make up the rotating end of the Hughes rock bit." Transcribed from photo sleeve: "The Kearney and Trecker 4 spindle machine at the Hughes Tool Company in Houston, Texas. Ca. 1950s."

The black and white view of members of the Aeronautical Association awaiting the arrival of Howard Hughes and his Lockheed 12 aircraft at the Floyd Bennett Airport in New York. Typed onto a piece of paper attached to the image: "Official timers of Aeronautical Association compare their precision chronometers as Lockheed-14 roars overhead, marking end of Round-the-World flight at Floyd Bennett Airport." Typed onto a second piece of paper also attached to the image: "Official timers of the Aeronautical Association shown at Floyd Bennett Field comparing their precision chronometers as Howard Hughes' plane roared overhead marking the end of his Flight Around The World. July 1938."