Collects Iron Man (1968) #170, Uncanny X-Men (1981) #173, Fantastic Four (1961) #265, Amazing Spider-Man (1963) #252 and Annual #21, Incredible Hulk (1968) #324, Thor (1966) #378, Captain America (1968) #333 and X-Factor (1986) #24. Celebrate 80 years of Marvel Comics, decade...