Red Squier Starfire Grote brand electric guitar signed on the body in silver felt tip marker by "Back to the Future" actor Michael J. Fox, who inscribed his character's name "Marty" after his signature. Measuring approximately 40" x 15" and in fine condition. Accompanied by black carrying case. Authenticated by Official Pix Authentics, with their official hologram affixed to the reverse side of the body (#37053).