Featured is a Willie Mays signed San Francisco Giants Semi Pro League baseball. This baseball was hand signed by Willie Mays and authenticated by PSA/DNA authentication services. Included with the baseball is a PSA/DNA hologram and certificate of authentication. This item would make a great addition to any sports memorabilia collection!. SPECIFICATIONS Autographed By: Willie Mays Team: New York Giants Sport: Baseball Authentication: Professional Sports Authenticator (PSA)