This is Thrilling Mystery for July 1936, no recorded artist and no ISFDB entry, I found this version of the cover at Pulp Covers and verified its publication date via the index at Galactic Central.
This is Thrilling Mystery for July 1936, no recorded artist and no ISFDB entry, I found this version of the cover at Pulp Covers and verified its publication date via the index at Galactic Central.