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- ABOVE: Will Eisner, “Meet P’Gell,” The Spirit, October 6, 1946.
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- ABOVE: detail (flipped horizontally), “[Spike and Bat Meet] Madame Cobra!,” Tell It to the Marines #2 (May 1952), with uncredit art by Jack Sparling (attrib.).
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- ABOVE: “[Spike and Bat Meet] Madame Cobra!,” Tell It to the Marines #2 (May 1952), with uncredit art by Jack Sparling (attrib.).
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- ABOVE: Tell It to the Marines #2 (May 1952), with uncredited cover art by Jack Sparling (attrib.).
[Credits for the "Madame Cobra" artwork via comics.org.]