This early (October 1933) Margaret Brundage Weird Tales cover might be among he most iconic images. Jayem Wilcox provides some interesting (and perhaps unfortunate) interior illustration to Robert E. Howard’s story “The Pool of the Black One.”
“Across the grassy level a giant black was striding, carrying a squirming captive under one arm.”
This issue of Weird Tales is available for reading and download at the Internet Archive.
I have to say, I love that mask. ^_^