Comic Title: World's Finest Comics #150
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: June 1965
On Sale Date: April 29, 1965 Newsstand Date April 29, 1965
Source: House Ad, Superman's Pal Jimmy Olsen #85, Page 20

Copyright Date April 29, 1965
Source: Library of Congress, Periodicals 1965

Frequency: Monthly, with the exception of Jan., April, July and Oct.
Cover Price: $0.12
Page Count: 32
Editor: Mort Weisinger

Title: "The Super-Gamble with Doom"
Pages: 17

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

Writer: Edmond Hamilton
Penciller: Curt Swan
Inker: Sheldon Moldoff

Reprinted In:
Showcase Presents:World's Finest Vol. 3 TPB (2010)
Batman & Superman in World's Finest Comics:The Silver Age Omnibus Vol. 2 HC (2019)

Feature Character(s)

• Superman (last appearance in Justice League of America #36; next appearance in Superman #178)
• Batman (last appearance in Justice League of America #36; next appearance in Detective Comics #341)

Supporting Character(s)

• Robin (last appearance in Detective Comics #340; next appearance in Detective Comics #341)

Villain(s)

• Rokk and Sorban (last appearance in Superman #171; next appearance in Flash #175)

Other Character(s)

• Lurala and Hargo (no further appearances)
• Carson (a friend of Bruce Wayne; no further appearances)
• Several unnamed gamblers (no further appearances)

Cameo Appearance(s)

• Lois Lane (as a face on a balloon)
• Jimmy Olsen (as a face on a balloon)
• Lana Lang (as a face on a balloon)
• Perry White (as a face on a balloon)
• Commissioner Gordon (as a face on a balloon)
• Pete Ross (as a face on a balloon)

Comments:
Part 2: "The Duel of the Super-Gamblers"

Synopsis:
Batman investigates Gamblers' Isle where several people have reported illegally fixed games. Batman tests the games and determines them to be legal, but when Superman arrives, the owners of the island are exposed as aliens, Rokk and Sorban. Batman loses a wager with them and is forced to return to the planet Ventura.

Superman joins Batman and the aliens on Ventura. The atmosphere is poisonous to Batman, so Superman must gamble with the aliens for Batman's life. Rokk and Sorban attempt to intimidate Superman, but he overcomes them with the help of the beautiful Lurala. Superman wins his wager and takes Batman home to safety.