Comic Title: World's Finest Comics #106
Publisher: DC (National Comics Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: December 1959
On Sale Date: October 20, 1959 Copyright Date October 20, 1959
Source: Library of Congress, Periodicals 1959

Frequency: Monthly, with the exception of January, April, July and October
Cover Price: $0.10
Page Count: 32
Editor: Jack Schiff

Title: "The Duplicate Man"
Pages: 12

Feature(s):
Superman (of Earth-1)
Batman (of Earth-1)

Writer: Bill Finger
Penciller: Dick Sprang
Inker: Sheldon Moldoff

Reprinted In:
World's Finest Comics #170 (1967)
World's Finest Comics Archives Vol. 3 HC (2005)
Showcase Presents:World's Finest Vol. 1 TPB (2007)
Batman & Superman in World's Finest Comics:The Silver Age Omnibus Vol. 1 HC (2016)
Batman & Superman in World's Finest Comics:The Silver Age Vol. 2 TPB (2018)

Feature Character(s)

• Batman (last appearance in Batman #128; next appearance in Detective Comics #274)
• Superman (last appearance in Superman's Pal, Jimmy Olsen #41; next appearance in Action Comics #259)

Supporting Character(s)

• Robin (last appearance in Batman #128; next appearance in Detective Comics #274)
• Perry White (last appearance in Superman's Pal, Jimmy Olsen #41; next appearance in Superman #134)

Villain(s)

• The Duplicate Man (no further appearances)

Synopsis:
Batman and Robin encounter a new criminal, Duplicate Man, who can split himself into two people, and then revert back into one. Duplicate Man commits several thefts and is able to avoid capture from Batman and Superman as well. Superman creates a phony invention which Duplicate Man steals. The invention hypnotizes the crook into submission. The technology which produced his ability is destroyed, and Duplicate Man is jailed.