Jor-El invents the Phantom Zone Projector as a more humane way to punish criminals than sending them into space and successfully submits it into a Science Council competition. The disgruntled loser of the competition, Gra-Mo, takes over Krypton's rob
The price of "Superboy #104" at Current Comics Monterey is USD $25.00.
The publisher of "Superboy #104" is DC Entertainment.
The genres of "Superboy #104" are Humor, Superheroes, and Teen.
"Superboy #104" falls under the category of Back Issues.
The artists of "Superboy #104" are Stan Kaye, George Papp, Henry Boltinoff, and Curt Swan.
The writers of "Superboy #104" are Edmond Hamilton, Stan Kaye, and Henry Boltinoff.
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