Titles include "Atomic Robo," "Aphrodite IX" and "Bleeding Cool" magazine.
Copyright 2013 Scripps Media, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.
Top Lifestyle Headlines
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.