This tale first appeared in The Black Mask for February 1926 as "The Assistant Murderer." It featured Alec Rush, "the world's ugliest detective." Why the title was changed for newspaper serialization is anybody's guess. My apologies for failing to find a good depiction of ugly Alec.
Pittsburgh Sun-Telegraph, April 23, 1939
Pittsburgh Sun-Telegraph, April 24, 1939
Pittsburgh Sun-Telegraph, June 18,1939