I never realized this was Kane before. I guess if I would have looked closer I would have noticed Kane anatomy with the Vision and Scarlett Witch. But in the original cover, stuff like Thor's left hand is far more Romita to me. What stories are in that book? I've never seen it before.
Even stranger is when you compare the two, they were inked by two different inkers - the annual looks like Esposito and the Avengers #122 was by Romita. Lots of obvious differences like Thor's hands, Thor's face, etc.
Did Esposito ink it first, then Romita got a hold of it before publication? Strange.
Or was it vice versa and someone lightbox it from the #122 art for the Annual?