This Autographed William White Onl Baseball has been Personally Signed by Notable Signatures Include: David Cone, Jeff Torberg, Mel Stottlemyre, John Franco, Jeff Innis, Barry Jones, Wally Whitehurst, Charlie O'Brien, Kevin Baez, Dick Schofield of the New York Mets. This item is 100% Authentic to include a Certificate of Authenticity (COA) / hologram by Beckett Authentication Services. The authenticity can be verified on Beckett Authentication Services website.