Notes:
On sale date from the Catalog of Copyright Entries, Third Series, Vol. 11, Part 1, No. 2, Books and Pamphlets Including Serials and Contributions to Periodicals, July-Dec. 1957. Registration number is A300493.
Other Timely Comics with the same registered copyright date had cover dates of September, October, and November. Comics on sale a month earlier had September cover dates, while comics on sale a month later had November and December cover dates.