Part 1 of 4-part Origin of Mantis/Vision storyline.
Possible Giacoia cover credit provided 2006 by Nick Caputo. Dave Cockrum credit from GCD error list July 2008 I have email correspondance with Paty Cockrum prior to the death of her husband Dave Cockrum.
Dave specifically remembered working on this cover. I have a copy of Avengers 133 that was signed by Dave Cockrum. Again, he signed it because he worked on the cover with Gil Kane.
Lex Carson aka "Batroc"