This Autographed Leonard Coleman Onl Baseball has been Personally Signed by Jim Leyland; Al Leiter; Moises Alou; Charles Johnson; Matt Whisenant; Tony Saunders; Bruce Kison; Milt May; Robb Nen; Jerry Manuel; Jeff Conine; Devon White; Pat Rapp; John Cangelosi; Kurt Abbott; Rick Helling; Gregg Zaun; Bobby Bonilla; Dennis Cook; Gary Sheffield; Jay Powell; Jim Eisenreich and others of the Miami Marlins. 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.