Muhammad Ali Autographed Memorabilia. Check out this Muhammad Ali Autographed Tru Play Boxing Glove World Heavy Weight Boxing Champ, March 12 - 77, Peace - PSA/DNA Certified. This is a Tru Play Boxing glove that has been hand signed by Muhammad Ali. Muhammad also inscribed this glove, World Heavy Weight Boxing Champion, March 12 - 77, Peace. The autograph has been certified authentic by PSA/DNA and comes with their sticker and matching full page certificate of authenticity. SportsCollectibles.com offers a wide selection of boxing collectibles. Product ships within 1-3 business days and ships free if your order is over $100. Buy with confidence as this Muhammad Ali autograph has been authenticated.