Bakersfield was the LA Dodgers Single A affiliate at the time. We were only able to positively identify Eric Karros, Jose Offerman and Braulio Castillo signatures, but the 1989 Bakersfield team is the only time all three were teammates. We guarantee any autograph we sell to pass 3rd party authentication with CAS, our authenticator of choice. If you want to take advantage of the guarantee you must notify us before we ship. Once you have taken possession of an item it is yours!