This autographed OML baseball has been personally hand-signed by Ken Harrelson of the Chicago White Sox. Harrelson added his nickname “Hawk”, and “HOF 2020” along with his signature. This autograph is certified by Beckett Authentication Services (BAS) Witness Certification. That means that a Beckett representative was present when this item was signed. It comes with the numbered authentication hologram with a QR code that verifies the authentication on the Beckett website.