This baseball has been personally hand-signed by Cal Ripken Jr. with the inscription "1983 World Series Champs." It has been obtained under the auspices of the MLB Authentication Program and can be verified by its numbered hologram at MLB.com. It also comes with an individually numbered, tamper-evident hologram from Fanatics Authentic. To ensure authenticity, the hologram can be reviewed online. This process helps to ensure that the product purchased is authentic and eliminates any possibility of duplication or fraud.Includes an individually numbered tamper-evident hologramOfficially licensedMade in the USAAutographed baseballBrand: Fanatics AuthenticSignature may varyOfficially licensed by MLBAuthenticated with FanSecure technology