In the 1970s there was a fair number of times when Marvel had to print a reprint instead of the intended story, but it was too late to replace the cover. Conan the Barbarian #22 is an example. The cover was supposed to go with the story in #23, and the issue carried a reprint of Conan the Barbarian #1 instead:
There are cases of mismatch from other periods as well. Detective Comics #40's cover was supposed to go with the second Joker story, but that story appeared in Batman #1 instead. So this cover was the Joker's first cover appearance, although he didn't appear inside:
This cover from Baffling Mysteries #8 belongs with a story that appeared in The Beyond #2 and was reprinted in Web of Mystery #27:
I thought it might be interesting to put together a collection of as many cases like these as possible. Please chime in with any you know.
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