Aaron Altherr Phillies JSA SIGNATURE DEBUT COA Signed Autographed Baseball A
Aaron Altherr signed Official Major League Baseball
This is an Official Major League Baseball that Aaron signed earlier this year. This baseball comes with a JSA SIGNATURE DEBUT COA. SIGNATURE DEBUT COA'S are very unique, it guarantees that the signature was signed and authenticated prior to the players 1st game of his second MLB season. Having a Debut Signature of a player should make your collection very unique. JSA is the leading authenticator in our industry!