HOFer DAN MARINO No. 13 signed MIAMI DOLPHINS Mini Helmet. Obtained in person at the PRO FOOTBALL HALL OF FAME in Canton, OH a few years ago. Comes with My Certificate of Authenticity (COA) from Glenn’s Stadium Heroes and PSA / DNA AH53394. All Autographs obtained in person through Show Signings, Before at Sporting Event, Golf Tournaments and Special Dinner & Charity Events.