This MUHAMMAD ALI BOXING AUTHENTIC SIGNED 3X4.5 CUT AUTOGRAPHED PSA/DNA SLABBED has been certified authentic. It comes slabbed and authenticated by PSA/DNA. You can also see the authentication on the PSA/DNA website, PSAcard. MUHAMMAD ALI - Autographed - Signed - Memorabilia.Our items are sourced from PPC autograph signings or direct from leading suppliers of authentic memorabilia. The companies that authenticate these items include Beckett Authentication Services (BAS), Professional Sports Authenticator (PSA/DNA), James Spence Authentication (JSA), Steiner Sports, Upper Deck, Fanatics, Mounted Memories, and Tri-Star Productions. All autographed items come with a Certificate of Authenticity (COA) from these suppliers that includes a tamper proof hologram affixed to the item. Press Pass Collectibles has exclusive autograph relationships with over 50 professional athletes and celebrities including Magic Johnson, Chevy Chase, Travis Kelce, DK Metcalf, Justin Jefferson, Randy Moss, Kyler Murray, Adrian Peterson, Baker Mayfield, Ray Lewis, George Kittle, Dak Prescott, Jerome Bettis, Chase Claypool, Deion Sanders, Jack Lambert, Mean Joe Greene, T. Watt, Tony Dorsett, Devin White, Tony Gonzalez, Emmitt Smith, Michael Irvin, Jason Witten, Jared Allen, Kurt Warner and more! The item "Muhammad Ali Boxing Authentic Signed 3X4.5 Cut Autographed PSA/DNA Slabbed" is in sale since Tuesday, November 14, 2017. This item is in the category "Sports Mem, Cards & Fan Shop\Autographs-Original\Boxing\Other Autographed Boxing Items". The seller is "presspasscollectibles" and is located in Scottsdale, Arizona. This item can be shipped to North, South, or Latin America, all countries in Europe, all countries in continental Asia, Australia, South africa, New Zealand, Egypt, Reunion.