Beckett has only graded the signature, not the ball, please refer to photos prior to purchase
Press Pass Collectibles only offers Authentic Autographs by Mickey Mantle through Signings, In-Person Signings or Private Collections to include a 100 money back Lifetime Authenticity Guarantee.
The authenticity can be verified on Beckett Authentication Services website
The signature is also authenticated by Upper Deck, COA hologram AUB32204
This item is 100 Authentic, it comes encapsulated and authenticated by Beckett Authentication Services