Laviska Shenault Autographed Colorado Buffaloes Chrome Mini Helmet BAS 28082 This is a Colorado Buffaloes chrome mini helmet that was personally autographed by Laviska Shenault. This helmet includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs. The number in the listing title is just an inventory sku for our records and is not the authentication number.