Avengers Annual #21 Marvel Comics (1967)

"Kang’s World" Part 4 of the Citizen Kang storyline. Guest-starring the Fantastic Four. Script by Mark Gruenwald. Pencils by Herb Trimpe. Inks by Charles Barnett and Brad Vancata. Cover by Dan Panosian. Story continues from Fantastic Four Annual 25. In Timely, Wisconsin (the secret portal to Chronopolis), the Fantastic Four and Earth’s Mightiest Heroes come face-to-face with the Anachronauts! Kang’s powerful warriors that have been plucked from various time streams to defeat the combined might of nine 20th century super-heroes!