Superman #175 CGC 9.2
Superman cover and story, Imaginary story in which Clark Kent and Lex Luthor are brothers
Superman #181 VF+ (8.5)
1st appearance of Superman of 2965, Superman cover and story
Superman #183 VF (8.0)
80 Page Giant! Superman cover and story, including the 1st appearance of Mr. Myxzptlk reprinted from Superman #30.
Superman #187 VF- (7.5)
80 Page Giant! Superman unlocks the Secrets of the Fortress of Solitude!
Superman #194 VF+ (8.5)
Superman & the death of Lois Lane cover and story
Superman #199 VF (8.0)
Classic Superman vs. the Flash cover, 1st Superman & Flash race! JLA appears
Superman #200 VF+ (8.5)
Anniversary issue, Superman on Krypton cover and story
Superman #206 F/VF (7.0)
Superman cover and story, Neal Adams cover art, improvable
Superman #209 F/VF (7.0)
Structurally nicer, but has fingerprint smudge at right