This is a rare and valuable collectible commemorating Richard Byrd, one of America's most beloved and heroic figures. The FDC features a 3 cent Antarctic Expo stamp and is stamped with a First Day of Issue cancellation, making it a must-have for any serious collector. The cover is in excellent condition and has been carefully preserved to ensure its longevity. It is a perfect addition to any collection of patriotic memorabilia or stamps from the United States. Will ship USPS Ground Advantage Service with tracking. Thanks for looking.