Explore detailed information and market values for Detective Comics #40 comic book, including current prices, sales data, and collector insights.. Information about the comic Detective Comics #40, which has a publication date of June 1940 and was published by DC.
![[CLOSED] Detective Comics 40 1st Clayface and 1st Joker Cover](https://d3nvbf5pqk2vjh.cloudfront.net/cgccomics/monthly_2020_03/69955A90-1529-460C-B0EF-A47961F85D43.jpeg.9557d2b912c3a6a586a6b6debaf66699.jpeg "[CLOSED] Detective Comics 40 1st Clayface and 1st Joker Cover")
Detective Comics #40 is an issue of the series Detective Comics (Volume 1) with a cover date of June, 1940.. Read Detective Comics (1937-) #40 on DC UNIVERSE INFINITE, the ultimate destination to read DC Comics online | When things go awry on set, Batman must save.