Mark McGwire has personally hand signed this 8x10 Photo with a sharpie pen. This item comes with a numbered Online Authentics.com authenticity sticker on the autographed photo, which you can verify online once you purchase it. Online Authentics.com is one of the top third party authenticators in the memorabilia industry. This item also comes with a Greg Tucker Autographs Memorabilia Certificate of Authenticity (COA).
Comes fully certified with Certificate of Authenticity and tamper-evident hologram. Also backed by SportsMemorabilia.com's Authenticity Guarantee
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