Andrew Vaughn Signed Chicago White Sox City Series South Side Jersey (Beckett)This autographed jersey has been personally hand signed by Andrew Vaughn of the Chicago White Sox. 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. Custom on field style jerseys are a more affordable option