Astonishing Tales #29 1975 Guardians of the Galaxy.
Strange Tales #159 1967 Captain America and Origin of Nick Fury 1st appearance of Val.
Fantastic Four #83 1969 Inhumans appearance.
Marvel Team-Up #1 1972 Spider-Man Human Torch 1st Misty Knight
Astonishing Tales #32 1976 DEATHLOK
Astonishing Tales #33 1976 DEATHLOK
Astonishing Tales #34 1976 DEATHLOK
Astonishing Tales #35 1976 DEATHLOK
Amazing Spider-man #55 (2nd Printing) 2021
Amazing Spider-Man #82 Electro 1970
Sub-Mariner #12 Prince Namor 1969
Tales of Suspense #79 First appearance of Cosmic Cube; First modern Red Skull 1966
Tales of Suspense #67 Iron Man and Captain America 1965
Tales to Astonish #66 Giant-Man and Hulk 1965
Sub-Mariner #53 - 1972
Man-Thing #10 - 1974
Man-Thing #19 - 1975
Strange Tales #182 - 1975
X-Factor #19 - 1987, First battle between X-Factor and Apocalypse's Horsemen
Doctor Strange Annual #1 - 1976
Doctor Strange #3 - 1974
Doctor Strange #5 - 1974
Doctor Strange #4 - 1974
Man-Thing #6 - 1980