I have a 2LP box set of the opening night concert of the Lincoln Center in NY. The included 40-page booklet has photos of the opening ceremonies and history of the concert hall from concept to finish construction. The first track of LP1 is the opening address by John D. Rockefeller 3rd. The concert was conducted by Leonard Bernstein and performed by the New York Philharmonic. I don't know if it is rare or not but I haven't seen another copy of it.
Brag About Your Vinyl Collection
There are a couple of posts for listing your favorite albums, but what about those albums that you've collected simply for value or rarity? Here is your chance to tell about some of the rare and valuable records in your collection, where you found them, how you store/display them, etc.