This is Spicy Mystery Stories for August 1938 (at which point the magazine seems to have changed from a monthly to a bimonthly publication schedule). The cover is by H.J. Ward; there is no ISFDB entry. I found this version of the cover in the Galactic Central Index.
Update: I found an original version of this cover at Pulp Covers.
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.
This is Spicy Mystery Stories for May 1938, cover artist unrecorded and no ISFDB entry. I found this version of the cover in this Pinterest gallery, and checked its dating on the Galactic Central index.
This is Spicy Mystery Stories for March 1938, no noted cover artist or ISFDB entry. I found it at Galactic Central.
This is Spicy Mystery Stories for February 1938, cover by Harry Lemon Parkhurst, as well as a story by the ever-so-plausibly named “Justin Case.” The ISFDB entry for this issue is here. I found this version of the cover at Pulp Covers.
This is Spicy Mystery Stories for January 1938, no artist recorded and no ISFDB entry. I found this cover at Galactic Central.
This is Spicy Mystery Stories for December 1937, no cover artist recorded and no ISFDB entry. I found this version of the cover at Galactic Central.
This is Spicy Mystery Stories for November 1937, 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 October 1937, no recorded cover artist or ISFDB entry. I must comment though, that rarely have I seen a pulp damsel wearing something that looks so much like body paint rather than cloth. I found this version of the cover at Galactic Central.
This is Spicy Mystery Stories for September 1937, cover by Harry Lemon Parkhurst. The ISFDB entry for this issue is here. I found this version of the cover at Cover Browser.
