Denard Robinson Signed Michigan Wolverines Speed Mini-Helmet (PIA QR) Jags R.B.This autographed Riddell mini helmet has been personally hand signed by Denard Robinson of the Michigan Wolverines. This autograph is certified by Players Ink. It comes with the numbered authentication scannable hologram with a QR code that verifies the authentication on the Players Ink website. Scan the QR code with your mobile phone to verify the authenticity. Shop our ebay store Friendly Confines Collectibles for thousands of different autographed