Comic Title: World's Finest Comics #20
Publisher: DC (World's Best Comics Company)
Address: 480 Lexington Avenue, New York, NY
Cover Date: Winter 1945
On Sale Date: October 26, 1945 Newsstand Date October 26, 1945
Source: House Ad, Sensation Comics #48, Page IFC,
Flash Comics #68, Page IFC

Copyright Date October 23, 1945
Source: Library of Congress, Periodicals 1945
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: Quarterly
Cover Price: $0.15
Page Count: 72
Editor: Jack Schiff

Title: "King of Coins"
Pages: 12

Feature(s):
Batman (of Earth-2)

Writer: Don Cameron
Artist: J. Winslow Mortimer

Reprinted In:
Batman:The World's Finest Comics Archives Vol. 2 HC (2004)
Batman:The Golden Age Omnibus Vol. 4 HC (2018)

Feature Character(s)

• Batman (last appearance in Detective Comics #106; next appearance in Detective Comics #107)

Supporting Character(s)

• Robin (last appearance in Detective Comics #106; next appearance in Detective Comics #107)

Villain(s)

• Lew Cronin (aka Mark Medallion; no further appearances)
• Lucky Smith and his gang (no further appearances)

Synopsis:
Coin dealer Mark Medallion has pieced together clues to the location of several legendary treasures. He offers to split the fortune with various treasure hunters if they retrieve the rare coins. Lucky Smith and his gang hijack the treasure hunters and take the coins for themselves. Then they confront Medallion and force him to hand over his maps.

Batman and Robin try to stop the crooks, but they fail. They use another copy of the treasure maps to locate the crooks again in the Louisiana bayou. This time Batman defeats the crooks and retrieves the gold. However, he notices that each coin is identical. When he returns to meet Medallion, he accuses the dealer of casting the coins himself from a load of stolen gold bullion. Medallion surprises Batman with a trap, but the Caped Crusader eventually outwits him.