New Kansas City Chiefs quarterback Patrick Mahomes II has autographed this officially licensed Kansas City Chiefs mini helmet. 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. 100% authentic.
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