On Sale Date from the publication date reported to the Catalog of Copyright Entries, Third Series, Volume 22, Part 2, Periodicals, January-December 1968. Copyright number B474895. Copyright given to Vista Publications, Inc., Marvel Comics Group.
Letters from Michael Conlan, Steve Finkelstein, Mark Tanner, and Paris Peet. Includes images from Tales to Astonish #95 (for both the Sub-Mariner and Hulk images).