This Autographed Baseball has been Personally Signed by Bobby Valentine, Edgar Alfonso, Al Jackson, Dave Wallace, Tom Robson, Timo Perez, John Franco, Mike Piazza, Jon Nunnally, Turk Wendell, Darryl Hamilton, Rick Reed, Al Jackson, Cookie Rojas, John Stearns, Matt Franco, Bobby Jones, Rey Ordonez, Mookie Wilson and Robin Ventura. 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.