Iconorama was a Cold War electronic projection system for graphic presentation ("stylized display using an etched plate to produce symbols") ordered by the USAF in 1959. The mechanism used a rear projection display, showing both a map overlay from a fixed lantern slide and dynamically updated data from a mechanical plotter. The mechanism for etching the slide is somewhat similar to an Etch A Sketch. The display can draw lines and characters, but cannot erase them individually.