That was just the beginning. The 20 most valuable comics ever auctioned off have all been sold since 2010. In the past two years, the astronomical selling prices of "holy grail" books like Action ...

Before that, the most valuable comic in the world was a copy of 1962’s Amazing Fantasy No. 15, the first appearance of Spider-Man, which sold for $3.6 million in 2021.

But Superman's popularity around the time is enough to make this the third most valuable rare comic out there. It has been known to sell for over £2.1million. Marvel Comics #1 - October 1939 - £ ...