Harold Warren Moon is an American former professional football player who was a quarterback for 23 seasons. He spent the majority of his career with the Houston Oilers of the National Football League (NFL) and the Edmonton Eskimos of the Canadian Football League (CFL). In the NFL, Moon is considered one of the greatest undrafted players in NFL history. Warren Moon has hand signed this Houston Oilers 8.5X11Photo. Full black pristine signature, inscribed #1 and wit HOF06. Rare, Exclusive Titans Photo Image Athlon obtained via the Collection from the Late Legendary Bob Hyde “Mr. Oiler”, Estate. Certificate of Authenticity from Athlon Sports Collectibles.