FANTASTIC FOUR: THE WORLD'S GREATEST COMICS MAGAZINE
A volume of retro stories, taking place in the Marvel Universe of the early 1970s. For the Fantastic Four it takes place between issues #100 (July, 1970) and #101 (August, 1970) of their own series.
Collected in Fantastic Four: The World's Greatest Comics Magazine.
— Description from Comic Vine community (comicvine.gamespot.com · https://comicvine.gamespot.com/fantastic-four-the-worlds-greatest-comics-magazine/4050-30423/).