The Spectre‘s costume was revealed in-story during More Fun Comics #53 (February 1940). The original setup was that Detective Jim Corrigan is dead, but still walks the earth, and he made the costume in order to fight crime.
The Spectre‘s costume was revealed in-story during More Fun Comics #53 (February 1940). The original setup was that Detective Jim Corrigan is dead, but still walks the earth, and he made the costume in order to fight crime.