Action Comics #451 (1975)

"The Great Super-Hero Contest," script by Jim Shooter, pencils by Curt Swan, inks by Jose Luis Garcia-Lopez. Superman encounters a super-powered prince from another world and the prince’s intended, the latter of whom falls for the Man of Steel and sparks trouble.

"The Day The Dreaming Dies," script by Elliot S! Maggin, art by Mike Grell.  Green Arrow and Black Canary must help Davy Tenzer, who claims to have lived for centuries, and who reveals to them that a deadly band called the Organization is planning to neutralize every government on Earth!  

Cover by Bob Oksner. Very good/fine condition.