Marshall Faulk Autographed/Signed Pro Style Throwback Blue XL Jersey BAS 31147 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 throwback blue XL jersey with sewn on name and numbers that was personally autographed by Marshall Faulk. Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs.