I remember years ago, my cousin and I saw the cover to Superman #213. It showed Superman lying dead on the ground holding a quill (!) and scrawling "THIS VAULT TO BE OPENED ONLY IN THE EVENT OF MY DEATH!! Superman" on parchment apparently from the 1770s. We always wondered what was in the vault Superman said is to be opened only in the event of his death. I found the comic for $12 at a comic convention or something and I had to buy it to discover what is in the vault.
Superman #213, January 1969
Written by: unknown
Penciled by: Curt Swan
Inked by: unknown
Cover by: unknown
All characters and stories are trademark and copyright (c)1969 DC Comics.
