Copyright © 1965 by National Periodical Publications, Inc.
On-sale date from ad in Green Lantern #27 and copyright registration. Copy of issue also seen with a date stamp of April 15, 1965.
inside front cover; published in cooperation with the National Social Welfare Assembly
previously appeared in DC comics cover-dated May 1952
Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics.
Story across 25 pages in three parts of 9.67 pages, 8.67 pages, and 5.67 pages.
Letters from readers Doug Potter, Jack Gergotz, and John Talbot.