George Perez - Avengers 178 - Updated!

There are quite a few differences between this unpublished cover for Avengers 178 featuring the Beast and the published version, both by George Perez.

(Professor H. and Tom Brevoort have both brought it to my attention that the published cover is by John Buscema.)

Image from The Marvel Age of Comics:

http://themarvelageofcomics.tumblr.com/post/16159938626/unused-cover-to-avengers-178-by-george-perez-and

Avengers vs X-Men

For the 30th anniversary of X-Men and The Avengers, Marvel published these anniversary specials.  The covers, by Brandon Peterson and Steve Epting, joined together to form this image.