O.J. Simpson Autographed/Signed Buffalo Framed Blue XL Stat Jersey JSA 32971 The number in the listing title is just an inventory sku for our records and is not the authentication number. This is a professionally framed custom pro style blue XL jersey with sewn on name and numbers that was personally autographed by OJ Simpson. Includes a certificate of authenticity from James Spence Authentication (JSA) and Denver Autographs.