Industry: Movies,Movie: Batman and The Joker,Signed by: Michael Keaton and Jack Nicholson,Signed: Yes,Autograph Authentication: James Spence (JSA),Original/Reproduction: Original,Country of Origin: United States Signer: Michael Keaton (Batman) Jack Nicholson (Joker) Item Type: Set of 2 Individually Signed Full Size Autograph Edition Stratocaster Style Electric Guitars Guitar Size: 39in in length Item Certification: These items are guaranteed authentic and have been certified authentic by James Spence Authentication (JSA) and Beckett the leading authorities on autograph authentication in the entire world! It has been affixed with a tamper proof hologram (2) with unique serial number that can be verified in the JSA and Beckett database. It comes with a matching Beckett certification card and JSA letter of authenticity. Buy with confidence from a trusted source in the autograph industry!