Super Bowl 54 Champion and leader of the Kansas City Chefs defense Tyrann Mathieu has autographed this officially licensed Chiefs collectors Eclipse mini helmet. Mini helmets are roughly 6x5x4." Autograph is authenticated by James Spence Authentication (JSA). Comes with JSA certificate of authenticity and matching sticker verified on their website. JSA is one of the world's leading authenticator of autographs. It is a "witness" COA, meaning a representative from JSA was present for the signing with him and witnessed him signing your item.
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