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This page contains a listing of all known appearances of Mechanical Monsters (1941 Superman Cartoons) where it is integral to the plot of the story.
If you find an Issue this Item appears in that is not shown here, and the item is integral to the plot of of the story, please edit that issue adding "Mechanical Monsters (1941 Superman Cartoons)" as an appearing Item.

Pages in category "Mechanical Monsters (1941 Superman Cartoons)/Appearances"