Another rare finding is a rare edition of Action Comics in which Superman makes his first
appearance. It was hidden in a wall in a Minnesota home for more than 75 years. While renovating the house in 2013, the contractor David Gonzalez found the comic book among the newspapers. It was used as insulation. The comic book was sold several weeks after its discovery for $175,000 to an unknown buyer. However, as Mr. Gonzalez ripped the back cover of the comic, that reduced the price with almost $50,000. Yet, it was still a lucky discovery.