Story continued from Aquaman #47.
Jim Aparo drew the hidden message SOLO on page one, indicating he probably did everything but write the story.
Story across 16 pages, but page 8 is a 2/3-page and page 16 is a 1/2-page.
Golden Age quiz with twenty questions and answers. Located between pages 8 and 9 of the main story.
House ad for Justice League of America #76 (November-December 1969).
House ad for Showcase #86 featuring Firehair (November 1969) and World's Finest #189 (November 1969). Both are advertised as "On Sale Sept. 11th".
Silver Age origin of Aquaman, substantially different from More Fun Comics version.