Dat Nguyen Autographed/Signed College Style White XL Jersey Beckett 39329 The number in the listing title is just an inventory sku for our records and is not the authentication number. The item pictured is a stock photo unless otherwise noted. This is a custom college style white XL jersey with sewn on name and numbers that was personally autographed by Dat Nguyen. Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs.