This Autographed Joseph Cronin Oal Baseball has been Personally Signed by Notable Signatures Include: Thurman Munson, Mel Stottlemyre, Fritz Peterson, Jack Aker, Jim Hardin, Terry Ley, Frank Tepedino, Mike Kekich, Lindy McDaniel, Roger Hambright, Al Closter, Bobby Murcer, Jim Lyttle, Ron Hansen, Felipe Alou, Gene Michael of the New York Yankees. This item is 100% Authentic and comes with a PSA/DNA Certification Card and a matching numbered Hologram. The authenticity can be verified on Professional Sports Authenticator website.