Michael Irvin Autographed 1989 Pro Set #89 Trading Card BAS 10 Slab 32746 The number in the listing title is just an inventory sku for our records and is not the authentication number. This is a Dallas Cowboys 1989 Pro Set #89 trading card that was personally autographed by Michael Irvin. Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs.