This Autographed Auto Graded Mint 9! 7.7x9 Photo has been Personally Signed by Joan Miro. This item is 100% Authentic, it comes slabbed and authenticated by Beckett Authentication Services. The authenticity can be verified on Beckett Authentication Services website. Press Pass Collectibles only offers Authentic Autographs by Joan Miro through Signings, In-Person Signings or Private Collections to include a 100% money back Lifetime Authenticity Guarantee.