Showcase » 10 issues

Issue #2

May 1956

Issue #3

The Frogmen!

August 1956

Issue #5

The Greatest Villain of All Time / The Two Faces of Mr. X / The Human Eel

December 1956

Issue #10

The Jilting of Superman / The Sightless Lois Lane / The Forbidden Box from Krypton

October 1957

Issue #11

The Day the Earth Blew Up!

December 1957

Issue #13

Around the World in 80 Minutes!; Master of The Elements

April 1958

Issue #21

The Secret of the Lost Continent

August 1959

Issue #22

S.O.S. Green Lantern / Secret of the Flaming Sphere / Menace of the Runaway Missile!

October 1959

Issue #26

The Aliens from 2,000 B.C.

June 1960

Issue #60

War That Shook the Universe!

February 1966