This is a commemorative cover from the first flight between Kitty Hawk, NC and Dayton, OH. It features a 6 cent stamp issued to commemorate the event. The cover is postmarked on the first day of issue, December 17, 1938. The cover is in used condition, with some wear and tear due to its age. It is ungraded and uncertified, but it is a great addition to any collection of historical events or aviation memorabilia.