The hand signed autograph has been authenticated by PSA. The item comes with the serial numbered certificate of authenticity (COA). This serial number can be looked up on the PSA website where the item will be described.This authenticates the autograph such that the hand signed autograph is guaranteed to be authentic. PSA is one of the most respected autograph authenticators in the hobby. The market respects their opinion. The Baseball is shown in the pictures. This is a cool item. It would look great on display in a man cave or sports bar! It is a must have for the true fan.