Superboy #250 NM+ (9.6)
Superboy & the Legion of Super-heroes cover and story, Joe Staton cover, Jim Starlin art
Superboy #251 NM- (9.2)
Superboy & the Legion of Super-Heroes cover and story, art by Joe Staton and Jim Starlin
Superboy #253 NM- (9.2)
1st appearance of several characters, including Blok, who later joins the Legion, Superboy & the Legion of Super-Heroes cover and story
Superboy #254 VF+ (8.5)
Superboy and the Legion of Super-Heroes vs. the League of Super-Assassins cover and story, Joe Staton art
Superboy #255 NM (9.4)
Superboy & the Legion cover and story, Dick Giordano cover and art by Joe Staton
Superboy #256 VF+ (8.5)
Superboy and the Legion of Super-Heroes cover and story, Dick Giordano cover, art by Joe Staton
Superboy #257 NM- (9.2)
Superboy and the Legion of Super-Heroes cover and story, Giordano cover, art by Joe Staton and Steve Ditko.
Superboy #259 NM- (9.2)
Last issue of Superboy and the Legion of Super-Heroes. Superboy leaves the Legion. Title becomes Legion of Super-Heroes with next issue!