Von Miller Autographed Denver Broncos Woodrow Electric Guitar LE BAS 34329 The number in the listing title is just an inventory sku for our records and is not the authentication number. This is a full size authentic Denver Broncos Woodrow electric guitar that was personally autographed by Von Miller with SB 50 MVP inscription. Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs.