6 Most Valuable Comic Books on Earth

Showcase # 4 (Published October 1959)

Fans of the wildly popular “Flash” TV series may be shocked to know that the character is 80 years old. The original Flash, Jay Garrick, was introduced in 1940. A new legacy version of the Flash, Barry Allen, was introduced in 1959. In 2009, a near perfect copy of this comic was sold for $180,000.