Inspired by the opening of Tutankhamun's tomb just a decade earlier, 1932's The Mummy starring Boris Karloff was one of a trifecta of early horror releases for Universal that set the tone for the genre. All are considered classics. This rare original-copy poster for the film is also considered a classic, and one of the most prized film posters in existence. A stone lithograph designed by Universal advertising art director Karoly Grosz, it's one of one three examples known to exist and is an outstanding early example of the visual language that still dominates movie poster design today. It already set the record for most valuable film poster once, in 1997. With an astronomical estimate and a starting bid to match, it will no doubt do so again when the hammer drops on October 31.