Nah, that would be EASY. I'm thinking some Sun Records label Elvis 45s, maybe a couple Warlock albums. Oh, and the original Robert Johnson 78s from 1937.
If you do pull those out, btw, I'm going to have a heart attack.
If it wasn't so late, I'd be tempted to take a photo of my Blind Lemon Jefferson on Paramount or a group of Sun Records.
Instead...this will have to do.
The Beatles first recording (promo copy).
Flipping through this thread and saw this. Almost all of these were destroyed because nobody purchased them. That's insane.