Comic Title: Detective Comics #230
Publisher: DC (National Comics Publications, Inc.)
Address: 480 Lexington Avenue, New York, NY
Cover Date: April 1956
Approx. On Sale Date: February 23, 1956 Copyright Date February 21, 1956
Source: Library of Congress, Periodicals 1956
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
Cover Price: $0.10
Page Count: 32
Editor: Jack Schiff

Title: "The Mad Hatter of Gotham City"
Pages: 12

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

Writer: Bill Finger
Penciller: Sheldon Moldoff
Inker: Charles Paris

Reprinted In:
Batman Annual #3 (1962)
DC Special Blue Ribbon Digest #15 (1981)
Batman Annuals Vol. 1 HC (2009)
Batman:The TV Stories TPB (2014)

Feature Character(s)

• Batman (last appearance in Batman #99; next appearance in Detective Comics #231)

Supporting Character(s)

• Robin (last appearance in Batman #99; next appearance in Detective Comics #231)

Villain(s)

• Mad Hatter (Jervis Tetch; first Earth-1 appearance; next appearance in Batman #161)
• An unnamed henchman (no further appearances)

Other Character(s)

• Mr. Brumer (a sculptor; no further appearances)
• An unnamed atomic scientist (no further appearances)

Synopsis:
The Mad Hatter seeks to add Batman’s cowl to his collection of famous hats. He makes a schedule of Batman’s upcoming public appearances, then tries to steal the cowl at each event. After two failed attempts, the Hatter successfully steals the cowl by making it radioactive. Batman uses a geiger counter to track the cowl back to the Hatter’s hide-out. He then disarms the crook and retrieves his stolen mask.