Marking site of first successful airplane flight by the Wright Brothers

Front:
E. C. 17:-MARKER AND MONUMENT AT BASE AND TOP OF KILL DEVIL HILLS, NORTH CAROLINA MARKING SITE OF FIRST SUCCESSFUL AIRPLANE FLIGHT BY THE WRIGHT BROTHERS 45400

Back:
This granite boulder, weighing 10 tons, bears the following inscription on a bronze plaque: “The first successful flight of an airplane was made from this spot by Orville Wright on December 17, 1903, in a machine designed and built by Wilbur Wright and Orville Wright. This tablet was erected by the National Aeronautical Association of the U. S. A. to commemorate the 25th anniversary of this event.”