Jay Berwanger Signed 1991 Downtown Athletic Club #1 Card PSA Slab 42626 The number in the listing title is just an inventory sku for our records and is not the authentication number. This is the exact item that you will receive so please see pictures for condition. This is a trading card that has been personally autographed by Jay Berwanger. This has been professionally slabbed by Professional Sports Authentication (PSA) and includes a certificate of authenticity from Denver Autographs.