This Autographed Alternate Slate Riddell Full Size Speed Proline Helmet W/ Uv Mirrored Back Acrylic Display Case has been Personally Signed by Christian McCaffrey of the San Francisco 49ers. This item is 100% Authentic to includes a numbered hologram by Fanatics. We conducted an autograph signing with Christian McCaffrey 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 Fanatics.