San Francisco Giants HOF Autographed/Signed OML Baseball w/Mays,+4 11373 This OML baseball is a San Francisco Giants Hall Of Fame baseball personally autographed byWillie Mays, Willie McCovey, Juan Marichal, Orlando Cepeda, and Gaylord Perry. The ball is clean as well as the signature. Includes a Willie Mays tamper proof hologram and a Certificate of authenticity issued by Denver Autographs.