Justice League of America #209 (DC, 1982 — Cover A)

DC Comics · Justice League of America (1960-1987) · 23 pages · Published 1982-12-01

Gerry Conway — Writer
Don Heck — Penciller
Don Heck — Inker
Carl Gafford — Colorist
George Perez — Cover Artist

The heroes triumphantly defeat Per Degaton on Earth-2 in 1942 (reverting him to a lowly lab assistant to Prof. Zee in 1947, remembering the events he caused as only another dream), as well as the Crime Syndicate (returning them to their limbo prison in the Earth-3 universe), returning things to normal on both Earth-2 in 1982 and Earth-Prime circa 1962 (with all forgetting this adventure ever happened).