Earth-E
From Supermanica
Earth-E
One of the countless Parallel-Worlds. On this parallel Earth, Superman and Batman both have Super-Sons named Superman, Jr. and Batman, Jr., respectively. It should be noted that this Earth may or may not exist, so as a result it must be considered a theoretical concept (WF No. 215, Dec 1972/Jan 1973: "Saga of the Super Sons!"; and others).
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