11x17 inch Supernatural 2013 San Diego Comic-Con poster autographed in silver by stars Jensen Ackles, Misha Collins, Jared Padalecki and Mark Sheppard, plus executive producers Robert Singer and Jeremy Carver. Obtained in person at limited WB signing, with photo from the signing. Authenticated by JSA with their Letter of Authenticity showing the poster. Has very minor handling flaws. ONLY ONE AVAILABLE FOR SALE.