I find it extremely fascinating that public or college libraries can have such a vast collection of items that something of this significance could go unnoticed for almost 15 years (article says that it may have been put in the library in the late 90s). I can't remember now but I've read a couple other articles that have the same premise, students or employees go in the archives to find something and end up stumbling upon something truly unique. I'd love to be someone who just goes through old books and manuscripts and sorts them, maybe in another life.