This is a rare and valuable 1964 Silver Age issue of Action Comics #314, featuring Superman in The Day Superman Became the Flash! It has been certified by the Certified Guaranty Company (CGC) with a Grade of 4.0 Very Good, and comes with a Certification Number of 4151818003. The comic book is written by Edmond Hamilton, with art by Jim Mooney and cover art by Curt Swan. It belongs to the US Comics tradition, set in the DC Universe, and features the Justice League of America superhero team. This single issue is a must-have for collectors and fans of superheroes and comics alike.