Who was the artist for these? It looks like the late Dave Cockrum, but I can't be sure...
I didn't really know to be honest, but it looks like you hit the nail on the head, Brent. http://keaneoncomics.tumblr.com/post/3344425735/ms-marvel-vs-deathbird-by-dave-cockrum
Ah, I'd completely forgot about that post! Solves that mystery, then! (While I'm here, keep up the great work with this blog, I thoroughly enjoy it.)
Glad to hear it! Thanks for the feedback!
Your comments are very welcome!