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 B474883. Copyright given to Vista Publications, Inc., Marvel Comics Group.
Book-length story with Hulk and the Sub-Mariner in this 100th issue. Brand inks per Adkins interview in Comic Book Artist #14.
Letters from Dennis Druash, Gregory Pasternack, Johnnie Pierce, and Jeb Bolan.