From what I could deduce, this show occurred September 13, 1984. Of course, if you have better info than I could trace, please feel free to comment/correct or give any first-hand show notes if possible!
The poster itself is a two-color screen, black and orange, on paper. It measures 23.5 X 13.5 inches. The image of Richard is iconic, would make a great wallpaper, and is definitely a poster/print I will have to have framed someday!