Superman #151 VF (8.0)
Superman vs the super-creature from Krypton! Very nice book and likely improvable
Superman #153 F/VF (7.0)
Superman vs the criminals from Krypton! structurally nicer, but has a small blemish at middle right
Superman #154 VF (8.0)
Superman vs Mr. Mxyzptlk! Krypton's first Superman back up story.
Superman #154 VF- (7.5)
Superman vs Mr. Mxyzptlk! Krypton's first Superman back up story.
Superman #156 VF- (7.5)
Death of Superman story, Legion of Super-Heroes appears
Superman #156 NM- (9.2)
Last days of Superman cover and story. Legion of Super-Heroes and Supergirl appear
Superman #181 VF (8.0)
1st appearance of Superman of 2965, Superman cover and story,
Superman #181 VF+ (8.5)
1st appearance of Superman of 2965, Superman cover and story
Superman #194 VF+ (8.5)
Superman & the death of Lois Lane cover and story
Superman #194 VF (8.0)
Superman & the death of Lois Lane cover and story