Pulp Parade #154: Perhaps that little swim off Innsmouth wasn’t such a grand idea

Pulp Parade #153: Are you sure you're a licensed witch doctor?
Pulp Parade #155: The Doll of Death's eyes make her look like a manga precursor

This is Spicy Mystery Stories for June 1938, no artist recorded or ISFDB entry. I found this version of the cover at Pulp Covers and check its dating on the Galactic Central index page.

This particular cover has appeared at Erotic Mad Science before, where it was reimagined by the CG artist Niceman as part of the pulp art recreation program.