Logo design credit from Todd Klein via his Facebook page, used with permission.
On inside front cover.
Credits from a list by Lionel English.
Previously appeared in DC comics cover-dated December 1960.
Story references Atom #8, Justice League of America #12 (earlier appearances of Dr. Light).
Story in two parts of 5.67 pages each.
Letters submitted by Danny Ward, Donald Ensign, Jerry Floyd, and Kenneth S. Gallagher.
Zero Hour story (referring to the point in time where Green Lantern's ring runs out of power).
Barks Ownley is drawn as a caricature of actor Edward G. Robinson.