Batman #4 (Jan 1941)

Batman #4, published in Jan 1941, is a Golden Age DC Comics comic featuring Batman, written by Bill Finger with cover art by Bob Kane.

Entitled 1st Story - The Case of the Jokers Crime Circus & 2nd Story - Blackbeards Crew and the Yacht Society, the story(s) continues The Dark Knight's Golden Age adventures as Batman faces Gotham’s criminals, mysteries, and shifting threats.

It is regarded as a key Batman comic due to the following significant event: 1st appearance of Jack of Diamonds (Dr Deegan).

Featured appearances include Batman (Bruce Wayne), Robin (Dick Grayson), C R Darcey, The Joker and other characters from Batman’s world.

A classic Golden Age Batman comic, this issue represents the earliest era of the Dark Knight, featuring historic storytelling, early character development, and highly collectible Batman moments.