This Retro 1951 officially licensed Smithsonian twist-top rollerball pen has been designed after the Discovery shuttle, embodying the 30-year history of human space flight from 1981 to 2011. Currently on display at the James S McDonnell Space hanger, this accomplished orbiting vehicle has inspired the Discovery pen, finished with black accents and engraved with a serial number along the top ring. packaged in a commemorative tube.