The product is a 5 cent United States postage stamp issued between 1921-1930, featuring a handstamped cancellation from the First Flight of the air mail service between San Antonio and Los Angeles. The cover includes multi-color designs related to aviation, making it a valuable collectible for enthusiasts of stamp history and aviation memorabilia. This unique piece of history showcases the dedication and innovation of aviation during the early 20th century in the United States.