49ERS PATRICK WILLIS “HOF 24” SIGNED SLATE FULL SIZE SPEED REP HELMET BAS WIT COLLECTIBLE MEMORABILIA

Every item is guaranteed authentic. Each purchase includes an Autographia Certificate of Authenticity and a tamper-proof dual hologram sticker - one on the item, one on the COA card - with matching serial numbers. Backed by our lifetime guarantee.

Our authentication process

Founded by Dr. James Beckett, a pioneer of the modern autograph industry. Beckett's team of examiners has certified millions of signatures across sports, music, and entertainment. Its tamper-evident stickers and letters of authenticity are accepted by major auction houses, dealers, and collectors worldwide.

Your Beckett COA includes a unique certificate number you can verify directly on their website.