Here are some of my favorite Fantastic Four Comics from the mid-1960s
#30 – Diablo (Sept 1964) #32 – Death of a Hero (Nov 1964)
#34 – A House Divided (Jan 1965)
#39 – A Blind Man Shall Lead Them (Jun 1965) – w/Daredevil
#40 – The Battle of the Baxter Building (Jul 1965) – w/Daredevil
The Fantastic Four Meet The Inhumans!!!
#44 – The Gentleman’s Name is Gorgon (Nov 1965)
#45 – Among Us Hide the Inhumans (Dec 1965)
#46 – Those Who Would Destroy Us (Jan 1966)
#47 – Beware the Hidden Land (Feb 1966)