Issue: #200
Last valuation update: 2023-07-03
Cover by Curt Swan & George Klein."Super-Brother against Super-Brother!" "Kal-El's Kid Brother!" part 2 "A Tale of Two Supermen!" part 3 written by Cary Bates, penciled and inked by Wayne Boring.
First appearances: Knor-El
Creators: Cary Bates, George Klein, Curt Swan, Wayne Boring, Mort Weisinger
Characters: Superman, Lois Lane, Perry White, Brainiac, Knor-El, Hyperman, Jor-El, Lara Lor-Van