This Autographed Bobby Brown Oal Baseball has been Personally Signed by Robin Yount, Paul Molitor, Dan Plesac, Mark Knudsen, Dale Sveum, Charlie O'Brien, Jim Gantner, Greg Brock, Tom Trebelhorn, Gary Sheffield, Tom Filer, Don Baylor, Ray Burris, Greg Vaughn, Darryl Hamilton, Bill Krueger, Ted Higuera, Chris Bosio, Bill Wegman, B.J. Surhoff, Larry Haney and Paul Mirabella of the Milwaukee Brewers. 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.