I have a lot of late 70s, early 80s punk on original labels. These include Devo recorded and produced locally in Ohio and the same for the B52s in Athens, GA. The same songs are on the over produced mass market LPs that some of you may own. These originals are much better performances. They sound like real bands. I have many many other bands including some original British imports. The list is long.
Then there is my LP of Eugene Ormandy conducting the Philadephia Orchestra in Peter and the Wolf narrated by David Bowie on GREEN clear vinyl.
I also have a Rolling Stones "Some Girls" LP with the cover where all of the women's faces appear. Most have some pictures blocked out because they were too revealing for the times. (Or something like that.)
While not music....for super super rare is an original recording of the entire speech General Douglas MacArthur gave to Congress when he retired (the "Old soldiers never die, they just fade away" speech). It is on multiple 78 RPM records all in the original sleeves and packaging. Mint condition, possibly never been played. I've been thinking of contacting the Smithsonian or Library of Congress to find out if any other copies exist.