On-sale date from copyright registration.
Future Superman series continues from Superman (DC, 1939 series) #181; series continues in Action Comics (DC, 1938 series) #339.
Published in cooperation with the National Social Welfare Assembly.
Previously appeared in DC comics cover-dated December 1963.
A list by Lionel English also gives the penciller and inker as "Morris Waldinger" in one of the issues this PSA appears in. Creator credits from a list by Lionel English. Other information on the sequence from Donald Dale Milne.
Letters submitted by Bill Sofsak Jr.; Peter Tartsch; Dave Olsen; Ralph D. Ecoff III; Greg Kent.
Statement of October 1, 1965
Average number of copies sold during preceding 12 months (total paid circulation): 525,254
Actual number sold for issue nearest filing date (total paid circulation): 542,003
Owners: National Periodical Publications, Inc., Estate of Harry Donenfeld, J. S. Liebowitz, P. H. Sampliner, Irwin Donenfeld, S. U. Sampliner, and Sonia Iger, all at 575 Lexington Avenue, New York, N.Y.