This Autographed Leonard Coleman Onl Baseball has been Personally Signed by Notable Signatures Include: Larry Walker, Don Baylor, Clint Hurdle, Vinny Castilla, Walt Weiss of the Colorado Rockies. 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. The signatures of Kirt Manwaring and Darnell Coles have been deemed clubhouse versions. There is also a valid example of Darnell Coles signature on the south panel.