The Simpsons Treehouse of Horror 2019 Comic-Con 11x17 inch poster autographed and doodled in black or silver by creator Matt Groening (doodled Homer's head near right edge), executive producer Al Jean, supervising director Mike B. Anderson, writer Stephanie Gillis and voice of Lisa Simpson, Yeardley Smith. Obtained at limited 2019 San Diego Comic-Con signing, with photo of Groening from the signing. Authenticated by JSA with their Letter of Authenticity showing this poster. ONLY ONE AVAILABLE FOR SALE.