This Autographed Alternate Eclipse Riddell Full Size Speed Rep Helmet has been Personally Signed by Trevon Diggs of the Dallas Cowboys. This item is 100% Authentic to include a hologram by James Spence Authentication Services and matching number COA. This is a JSA Witnessed Protection Program item which means a James Spence Authentication Service representative was present when this item was being signed. We conducted an autograph signing with Trevon Diggs where multiples of the same item were signed. While the photographs are representative of this item, the size, placement and strength of the signature may vary. Each item is hand signed, therefore, each autograph is unique. This item can be verified through JSA Witnessed.