Karl Mecklenburg Autographed Denver Broncos Eclipse Speed Mini Helmet - Beckett W Auth *Orange This is a Karl Mecklenburg of the Denver Broncos hand autographed Riddell Football Eclipse Speed Mini Helmet. This item has a Beckett Witnessed Authentication, which comes with a numbered sticker and a matching Beckett Certificate of Authenticity. You can view this item on the Beckett Authentication website and it shows when and where the item was signed. It was signed either at a public autograph appearance or a private signing. This is a stock photo of the item. Although you may not receive this exact item, the item you receive is virtually identical, brand new, and in great shape.