Yes - I have looked under every rock: Ebay, NYCB no longer carries it, Richard Corman's people have no idea, all my web searches have just turned up
images, mostly on blogs and pinterest. It seems it has disappeared from the face of the earth! Such a shame for such a beautiful photo/poster...but I'm not giving up...I'll keep searching. Perhaps there's a ballet memorabilla shop not on ebay that I can look for.....