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#40

Key Issue

June 10, 1940

Detective Comics #40

Key Issue: First appearance of Clayface; First appearance of Basil Karlo; Origin of Clayface; First Joker cover appearance

Publisher: DC Comics

Artist: Bob Kane

Maurice Kashuba

Ken Ernst

Jack Lehti

Fred Guardineer

Don Lynch

Chad Grothkopf

Howard Sherman

Jerry Robinson

Cover Artist: Bob Kane

Jerry Robinson

Writer: Jack Lehti

Chad Grothkopf

Jerry Siegel

Gardner F. Fox

Bill Finger

Editor: Whitney Ellsworth

Publication Date: Jun 10, 1940

Cover Price: $0.10

Page Count: 68 pages

What's it Worth?

Census Populations

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Known Variants

3 Variations of Detective Comics #40