Comic Title: Superman's Pal, Jimmy Olsen #27
Publisher: DC (National Comics Publications, Inc.)
Address: 480 Lexington Avenue, New York, NY
Cover Date: March 1958
Approx. On Sale Date: January 16, 1958 Copyright Date January 14, 1958
Source: Library of Congress, Periodicals 1958
Until 1958 DC did not report actual on sale dates to the copyright office
The publication dates listed in LoC records are NOT release dates.

Frequency: Monthly, with the exception of Jan., May, July, and Nov.
Cover Price: $0.10
Page Count: 32
Editor: Mort Weisinger

Title: "The Outlaw Jimmy Olsen"
Pages: 8

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

Writer: Otto Binder
Penciller: Curt Swan
Inker: Ray Burnley

Reprinted In:
Superman's Pal Jimmy Olsen #113 (1968)
Showcase Presents:Superman Family Vol. 2 TPB (2008)

Feature Character(s)

• Jimmy Olsen (last appearance in Superman's Pal, Jimmy Olsen #27; next appearance in Superman #120)

Supporting Character(s)

• Superman (last appearance in Superman's Pal, Jimmy Olsen #27; next appearance in Superman #120)
• Perry White (last appearance in Superman's Pal, Jimmy Olsen #27; next appearance in Superman #120)
• Professor Potter (last appearance in Superman's Pal Jimmy Olsen #25; next appearance in Superman's Pal, Jimmy Olsen #28)

Villain(s)

• Sparkler Smith (a jewel thief; no further appearances)

Synopsis:
An evil duplicate of Jimmy Olsen is created by a ray made by Professor Potter. The evil Jimmy commits crimes and uses Kryptonite to learn Superman’s secret identity. The exposure to the Kryptonite however causes the duplicate to vanish after several hours, preserving Superman’s identity.