Jeremiah Owusu-Koramoah Autographed College Style Blue XL Jersey BAS 32527 The number in the listing title is just an inventory sku for our records and is not the authentication number. This is a custom college style blue XL jersey with sewn on name and numbers that was personally autographed by Jeremiah Owusu-Koramoah. Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs.