This is one that I've been wanting to get to for a long time. With that giant monster climbing out of the ground, and the FF swarming around it, it's an image that has been imitated many times. As always, this list is to see them in chronological order. But first, the original...
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Concise Listing:
Alphabetical:
(2/04) Alter Ego #33.
(8/11) Alter Ego #104.
(6/81) Amazing Heroes #1.
(1/90) Avengers West Coast #54.
(7/10) Bongo Comics Presents: Comic Book Guy: The Comic Book #1.
(6/90) Explorers Of The Unknown #1. (It's not as obvious, since the robot's not climbing out of a hole, but I see it in the upraised hand holding Archie. There are more characters, so it's not perfect, but I think it's there.)