So, moreintheattic, that's how you do it! I think my favorite score was a copy of the panoramic photo of the set for the 1923 Hunchback of Notre Dame. Bought it, in a frame, for about $200 shipped. The seller emailed me and told me that I had scored because it was a one of a kind item. I don't know how many there are, but I know there are at least two because the other one is owned by the Academy of Motion Picture Arts and Sciences and was used as a gatefold in Phil Riley's book with credit given to the Academy.

Another piece that I love that I got on eBay was a window card from the 1927 The Unknown. The card was in superb condition and I used buy it now to capture the piece at a grand.

There must be others---let me think---