Comic Title: Superman's Pal Jimmy Olsen #20
Publisher: DC (National Comics Publications, Inc.)
Address: 480 Lexington Avenue, New York, NY
Cover Date: April 1957
Approx. On Sale Date: February 26, 1957 Copyright Date February 24, 1957
Source: Library of Congress, Periodicals 1957
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: "Jimmy Olsen's Super-Pet"
Pages: 8

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

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

Reprinted In:
Showcase Presents:Superman Family Vol. 1 TPB (2006)

Feature Character(s)

• Jimmy Olsen (last appearance in Superman's Pal Jimmy Olsen #19; next appearance in Superman's Pal Jimmy Olsen #20)

Supporting Character(s)

• Superman (last appearance in World's Finest Comics #87; next appearance in Superman's Pal Jimmy Olsen #20)

Villain(s)

• Two hold-up men (no further appearances)

Other Character(s)

• Danny the Dino (no further appearances)

Synopsis:
Superman discovers a dinosaur egg frozen in ice. When it hatches, he agrees to let Jimmy Olsen take care of the dinosaur for a week, so that he can win a pet contest. The dinosaur eats Jimmy out of house and home. Jimmy is broke. The dinosaur helps Jimmy stop a robbery, which earns the boy reporter a reward. Jimmy then lets Superman take the dinosaur to another world inhabited by dinosaurs to live permanently.