A very nice piece for autograph collectors has surfaced on eBay. This authenticated Revenge Of The Jedi
teaser poster features not only the late director Richard Marquand (1937-1987) signature, but also vintage George Lucas, Harrison Ford, Howard Kazanjian, and surprisingly, Ian Bryce (who at the time was a production assistant on the film and not the powerhouse producer he is now). Follow this link to have a look
, but keep in mind that since the signatures are all personalized, $2400 is a more realistic price.