National Comics #21 (1942)

National Comics #21 (1942) features the debut of the superhero, Uncle Sam. The story focuses on a group of patriotic heroes coming together to defeat the villainous group known as the Silver Sword. With Uncle Sam leading the charge, these heroes fight for justice and freedom against the forces of evil.

This comic is a significant piece of American comic book history, featuring the introduction of a character that would become a symbol of American values. It's a must-have for any serious collector of vintage comics.

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