Billy Shaw Autographed/Signed Pro Style Blue XL Jersey HOF BAS 32817 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 blue XL jersey with sewn on name and numbers that was personally autographed by Billy Shaw with HOF inscription. Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs.