This Autographed Game Used Mizuno Pro Limited Edition 12 Inch MZP 12 Glove has been Personally Signed by Archie Bradley of the Arizona Diamondbacks. This item is 100% Authentic to include a Certificate of Authenticity (COA) / hologram by Beckett Authentication Services. The authenticity can be verified on Beckett Authentication Services website. This glove was obtained from Archie Bradley of the Arizona Diamondbacks. Beckett Authentication Services has authenticated the signature, there is not any additional paperwork for the game use. Press Pass Collectibles only offers Authentic Autographs by Archie Bradley through Signings, In-Person Signings or Private Collections to include a 100% money back Lifetime Authenticity Guarantee.