Action Comics 312 from 1964, featuring the appearance of the character Metallo and artwork by Curt Swan. Published by DC Comics in the Silver Age era, this single issue is a first printing that includes characters like Superman (Clark Kent), Lois Lane, Lana Lang, and Jimmy Olsen.

MThe cover artist, Curt Swan, is well-known for his work in US Comics, particularly in the superhero genre, making this a valuable collectible for comic enthusiasts and fans of the Action Comics series.