Muhammad Ali was an American professional boxer, activist, and philanthropist. Nicknamed "The Greatest", he is widely regarded as one of the most significant and celebrated sports figures of the 20th century and..Certificate of Authenticity: see photos. Hand Signed Muhammad Ali - Online Authentics Comes fully certified with Certificate of Authenticity and tamper-evident hologram. With lots of different lighting settings. Size - 23 x 30 inches. A must have item for any Boxing Fan. The item "Mohammed Ali Rare Signed Boxing Glove in Bespoke Frame/Montage (with COA)" is in sale since Friday, December 14, 2018. This item is in the category "Sports Memorabilia\Boxing Memorabilia\Autographs". The seller is "csimmo1977" and is located in Chessington. This item can be shipped worldwide.