Featured is a John Mackey signed 1997 Upper Deck #AL-48 trading card. This card has been hand signed by Mackey and has been authenticated and encapsulated by PSA, receiving an autograph grade of Gem MT 10. This card would make a great addition to any sports memorabilia collection! SPECIFICATIONS Autographed By: John Mackey Team: Baltimore Colts Sport: Football Authentication: Professional Sports Authenticator (PSA)