This Rob Gronkowski Autographed New England Patriots Alternate Slate Riddell Full Size Speed Proline Helmet is the ultimate collectible for any die-hard Patriots fan or sports memorabilia enthusiast. Personally signed by the legendary tight end himself, this piece captures the spirit and dominance of Gronk's unforgettable career in New England, where he helped lead the Patriots to three Super Bowl victories and redefined the tight end position in the NFL. Complete with a UV mirrored back acrylic display case, this helmet is not only a historic keepsake but also an eye-catching piece worthy of any premium sports display. Authenticated through Beckett Authentication Services (BAS) as part of their Witnessed Protection Program, a BAS representative was present during the private signing to ensure 100% authenticity.

• Personally hand-signed by Rob Gronkowski, iconic tight end of the New England Patriots
• Full Size Riddell Speed Proline Helmet in the striking Alternate Slate colorway
• Includes UV mirrored back acrylic display case—perfect for showcasing this premium collectible
• Certified Authentic with BAS tamper-proof authentication sticker
  (Please note: BAS no longer issues serial-numbered COAs—the sticker serves as full authentication, complete with scannable QR code)
• BAS Witnessed Protection Program—a BAS expert verified the signing in person
• From an exclusive Gronkowski signing event—while signature placement may vary, each autograph is one-of-a-kind