Riddell On-Field Authentic Speed Tampa Bay Buccaneers football helmet, nicely autographed on the right side by future Hall-of-Fame Tight End Rob Gronkowski, who added his number “87” after his signature.

Signed at an official paid private autograph session (date & place of signing are detailed in the COA).

Affixed to the helmet is a numbered tamper-proof authenticity hologram from The Autograph Source.

Sold with a Certificates of Authenticity fromĀ  both The Autograph Source (Lifetime Guarantee) and independent third party authenticator Beckett Authentication Services (BAS).