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Riddell New England Patriots Proline On-Field Authentic Speed throwback football helmet, autographed in blue marker by Patriots record-setting tight-end Rob Gronkowski who added his number "#87" after his signature.
(This is the exact style of helmet that Gronk wears).
Signed at an official paid private autograph session.
Sold with a Certificate of Authenticity from The Autograph Source (Lifetime Guarantee) and independent third-party authenticator James Spence Authentication (JSA).
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