Robert Englund signed Mask Freddy Krueger – A Nightmare on Elm Street. This is an Officially Licensed Trick or Treat Studios A Nightmare on Elm Street signed by Robert Englund and inscribed “Freddy K”. This item has been fully examined by James Spence Authentication (JSA). You may also like. Nikki Glaser signed 11×14 Photo – Comedian. Douglas Tait signed Real Knife Michael Myers, The Shape – Halloween Kills. Mike Giannelli & David Howard Thornton signed & sketched Mask Art the Clown – Al.