This is an electric guitar with custom airbrush artwork that has been hand signed in person by John "Ozzy" Osbourne. A Certificate Of Authenticity will be included from UACC Registered Dealer #237 / 2011 UACC Autograph Dealer Of The Year!In addition to our own certification this item has been examined and certified authentic by PSA/DNA and features their tamper resistant PSA/DNA sticker with unique # which can be looked up on their website for confirmation. The PSA/DNA # is:K35507