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Detective Comics #524 (1937) Variants

DC Mar 1983

Detective Comics #524

Canadian
Detective Comics #524
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1st full appearance of Killer Croc
Batman #357 is commonly cited as Killer Croc's first appearance but he appears no different in his first cameo appearance in Detective Comics #523 than he does in Batman #357. In this issue, it is revealed that the previously obscured figure has crocodile features
2nd cameo appearance of Jason Todd, in one panel, mentioned by name

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