The Pro Set 1991 Chuck Knox Head Coach Seattle Seahawks #306 NFL Football Card is a vintage trading card featuring Chuck Knox, the former head coach of the Seattle Seahawks. Manufactured in 1991 by Pro Set, this original card is made of card stock and is officially licensed by the National Football League. The card is part of the 1991 Pro Set set and is a valuable collectible for fans of football and sports trading cards. With its vintage appeal and association with a legendary coach and team, this card would make a great addition to any football card collection.