I purchased an autographed game used Joey Votto bat in 2009 but it does not have a COA. What is the best and/or most cost effective method of having it authenticated? I have been searching the forums but couldn't find an answer. Any help would be appreciated. Here's a couple of photos:




Thanks, Mike

P.S. I've been looking through the forums and this is a wonderful site. I'm glad a fellow collector clued me in to this group.