Notes | - * "The Dukalia Spy Ring" is reprinted in Superman: From the 30's to the 70's and Superman: From the 30's to the 80's.
** The Axis Powers of Earth-2 included: Austria, Bulgaria, Croatia, Dukalia, Germany, Hungary, Italy, Japan, Napkan, Nastonia, Nural, Oxnalia, Romania, Toran, and others.
** Neutral nations of that same era included: Boravia, Kurtavia, Numark, San Monte, and others.
** After 1941-12, many of these countries drop from the scene.
* This issue is reprinted in Superman Archives, Volume 3.
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