Muhammad Ali Autographed Memorabilia. Check out Muhammad Ali Autographed 1992 Proline Portraits Card - PSA/DNA. This 1992 Proline Portraits Card that has been personally hand signed by Muhammad Ali. It has been authenticated by PSA/DNA and comes encapsulated in their tamper-proof holder. PSA/DNA is the leading third-party authenticator in the autograph industry. This autographed trading card is the perfect collectible for any sports fan or memorabilia collector. Commemorate the great career of Muhammad Ali with this signed trading card, or check out other souvenirs at SportsCollectibles.com for more products autographed by Muhammad Ali. When it comes to Sports Memorabilia, SportsCollectibles.com offers a wide selection of Muhammad Ali Autographed Trading Cards. Product will ship in 1-3 business days with free shipping on orders over $200. Buy with confidence as this is an authenticated Muhammad Ali autograph.