Joe Montana Dak Prescott Signed '17 Classics Idolized Gold 10 Auto BAS 42696 The number in the listing title is just an inventory sku for our records and is not the authentication number. The item pictured is the exact item you will receive so see photos for condition. This is a slabbed 2017 Classics Idolized Gold Grade 10 Autograph Trading Card that was personally autographed by Dak Prescott and Joe Montana. Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs.