Steve Largent Autographed/Signed Pro Style White XL Jersey HOF BAS 31153 The number in the listing title is just an inventory sku for our records and is not the authentication number. This is a custom pro style white XL jersey with sewn on name and numbers that was personally autographed by Steve Largent with HOF inscription. Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs.