The closest Golden Age comics came to Mickey Spillane's Mike Hammer was...
From this first appearance in Dynamite #3 (1953) onward, writer Ken Fitch (using the pen-name "William Waugh") and artist Pete Morisi went full-tilt hard-boiled/film noir in comic book form.
(In the pre-Comics Code days, you could do this sort of thing.)
But, this was nothing compared to what was coming in the very next issue, as you'll see tomorrow!
For more background on the short-lived, but still popular shamus go HERE!
Support Crime & Punishment!
Order this HTF trade paperback from Amazon...