The man of steel is also made of gold, apparently: A copy of the first comic book featuring Superman sold for $1 million on Monday, a new record for a comic book. The 1938 edition of Action Comics No. 1 was sold by a private seller to a private buyer, neither of whom disclosed their names. Previous copies of the book had sold for between $300,000 and $450,000, but this particular copy was in great condition—an 8 out of 10. According to its cover, it originally cost 10 cents.