This is Thrilling Mystery for September 1938, no recorded artist or ISFDB entry. I found this version of the cover at Pulp Covers, and checked the dating of the issue on the Galactic Central index.
This is Thrilling Mystery for September 1938, no recorded artist or ISFDB entry. I found this version of the cover at Pulp Covers, and checked the dating of the issue on the Galactic Central index.