A rare copy of the comic book featuring Superman’s first appearance that went undiscovered for over 70 years in the insulation of a Minnesota house has sold for $175,000. The winning bidder in the online auction was a “hard core, golden age comic book collector.”
It’s considered the Holy Grail of comic books: Action Comics No. 1 from 1938, featuring the debut of Superman. And David Gonzales found one mixed in with old newspapers insulating a wall in a house he was renovating in a small town in Minnesota.