This is Spicy Mystery Stories for November 1941, no cover artist recorded or ISFDB entry. I found this version of the cover via the index at Galactic Central.
The December cover looks intriguing, but sadly I have only been able to find it in a tiny thumbnail.
This is Spicy Mystery Stories for October 1941, no cover artist recorded or ISFDB entry. I found this version of the cover in the index at Galactic Central.
This is Spicy Mystery Stories for September 1941. Someone alert Rope Guy at BondageBlog, stat! It has no recorded artist or ISFDB entry. I found this version of the cover at Pulp Covers.
This is Spicy Mystery Stories for July 1941, no artist recorded and no ISFDB entry. I found this version of the cover in this Pinterest gallery.
This is Spicy Mystery Stories for May 1941, cover art by Harry Lemon Parkhurst. The ISFDB entry for this issue is Pulp Covers which also has a “clean” version of the same cover painting:
This is Spicy Mystery Stories for April 1941, no recorded artist or ISFDB entry. I found this version of the cover via the index at Galactic Central.
This is Spicy Mystery Stories for March 1941, cover by H.J. Ward. The ISFDB entry for this issue is here. I found this version of the cover at Pulp Covers.
This is Spicy Mystery Stories for February 1941, cover by Harry Lemon Parkhurst. The ISFDB entry for this issue is here. I found this version of the cover via the index at Galactic Central.
This is Spicy Mystery Stories for January 1941, no cover artist recorded and no ISFDB entry. I found this version of the cover via the index at Galactic Central.
This pulp cover was the subject of a re-creation by TheLadyJ for Erotic Mad Science in 2015.
This is Spicy Mystery Stories for December 1940, no recorded artist and no ISFDB entry. I found this version of the cover via the index at Galactic Central.