Mark McGwire Signed Oakland A's Hat Vintage New Era 59FIFTY - No COA Up for sale is an Oakland Athletics New Era hat featuring an in-person autograph from MLB legend and "Bash Brother" Mark McGwire on the visor. Item Details: Signature: Bold, crisp black marker autograph cleanly placed on the top of the brim. Authentication: This item does not come with a Certificate of Authenticity (COA). It is priced accordingly as a raw/unauthenticated signature. Condition: Clean hat with sharp embroidery and vibrant colors. Please review all high-resolution photos carefully to evaluate the condition of the hat and the signature for yourself. Shipping Shipped securely in a sturdy box to preserve the shape of the hat. Condition: Pre-owned New Era 59FIFTY cap with light signs of previous wear. Fabric, mesh panels, brim, and embroidery are clean and intact with no holes or tears. Inner sweatband and interior taping are intact. Black marker autograph on left side of brim; signer and authentica…