Comic Title: Superman's Pal, Jimmy Olsen #93
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: June 1966
On Sale Date: April 12, 1966 Newsstand Date April 12, 1966
Source: Direct Currents, Adventure Comics #344, Page 10

Copyright Date April 12, 1966
Source: Library of Congress, Periodicals 1966

Frequency: Monthly, with the exception of February, May and November
Cover Price: $0.12
Page Count: 32
Editor: Mort Weisinger

Title: "The Batman-Superman of Earth-X"
Pages: 16

Feature(s):
Jimmy Olsen (of Earth-1)

Writer: Bill Finger
Artist: Peter Costanza

Feature Character(s)

• Jimmy Olsen (becomes Steel-Man; last appearance in Action Comics #337; next appearance in Superman's Pal, Jimmy Olsen #93)

Supporting Character(s)

• Professor Potter (last appearance in Superman's Pal, Jimmy Olsen #88; next appearance in Action Comics #342)

Villain(s)

• Clark Kent and the Luthar League of Earth-X (no further appearances)

Other Character(s)

• Perry White, Lucy Lane, and Professor Potter of Earth-X (no further appearances)

Cameo Appearance(s)

• Superman (in a picture)
• Solarman, Mystic Man, and Storm King (in pictures)

Comments:
Part 2. : "Steel-Man's Last Stand"

Jimmy visits a parallel world called Earth-X in this story. This is not the same world on which the Freedom Fighters exist.

Synopsis:
Jimmy Olsen is transported to another dimension by an invention created by Professor Potter. In this parallel world Jimmy has super powers. He meets Clark Kent's counterpart who invents the identity of Steel-Man for Jimmy to use as a super-hero.

Jimmy battles the criminal Luthar League, whose leader resembles the Joker. When Jimmy finally locates him, he learns that it is a disguised Clark Kent. Clark is the secret leader of the Luthar League and is able to steal Jimmy's powers. Clark then tries to make himself king of the world, but Jimmy stops him using Krypton gas.

Professor Potter then returns Jimmy to his own dimension.