Action Comics #400 to 500 (1971-79) is the predominant theme of my CGC collection.This was before my time, I fell in love with this era as a kid when I found a pocket sized book called Superman in Action Comics: Featuring the Complete Covers of the Second 25 Years, Volume 2.   Action Comics in the 70s started with covers from Curt Swan and Murphy Anderson at 15 cents, Neal Adams also did several covers in the beginning of the decade. The covers from Nick Cardy were what captured my imaginatio