U. S. Centennial of Flight - History of Flight

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Images from: Air Power

	Billy Mitchell in plane Credit - (c) 2002 National Air and Space Museum, Smithsonian Institution (SI Videodisc No. 2B-1927-4)
	Billy Mitchell memorabilia Credit - U.S. Air Force Museum
	Billy Mitchell commemorative coin Credit - U.S. Air Force Museum
	Hap Arnold portrait Credit - (c) 2002 National Air and Space Museum, Smithsonian Institution (SI Videodisc No. 2B-00944-A)