Tales of Suspense #50-A featuring Iron Man and the Mandarin (Feb 1964)
Avengers #4 featuring Namor the Sub-Mariner (Mar 1964)
Uncanny X-Men #4 featuring The Brotherhood of Evil Mutants (Mar 1964)
Amazing Spider-Man #10 featuring The Big Man (Mar 1964)
Amazing Spider-Man #9 featuring Electro (Feb 1964)
Uncanny X-Men #3 featuring the Blob (Jan 1964)
Fantastic Four #22 featuring Mole Man (Jan 1964)
Avenger #3 featuring Namor the Sub-Mariner (Jan 1964)
Journey Into Mystery #102 featuring Thor and Hela (Mar 1964)
Journey Into Mystery #103A featuring Thor, Enchantress, and Excutioner (Apr 1964)