John Mackey signed Baltimore Colts Replica Mini Helmet HOF

In 1963, John Mackey joined the Colts and by 1966, had revolutionized the position of tight end in the NFL. Twice Mackey compiled season averages of more than 20 yards a catch, and his 10-year career average of 15.8 is considered remarkable for a tight end. John Mackey has hand autographed this Baltimore Colts Riddell Replica mini helmet with HOF Inscription. Ironclad Hologram and Certificate of Authenticity.