The Hughes Tool Company's hard formation rock bit type R-1 was the engineering marvel on which the Hughes fortune was founded. The bit was invented by Howard Hughes' father.
Hugh M. Hefner (left), the editor and publisher of "Playboy Magazine," with Jack Entratter (right) at the Sands Hotel in Las Vegas Nevada. Printed across the bottom of the image: "Hugh M. Hefner, editor and publisher of Playboy Magazine. (left) pix taken @ New Year 1969 (old year) '68." Site Name: Sands Hotel and Casino