This LoRA is just an SD1.5 version of my SDXL version. I recommend the SDXL version over this. This captures much less of the "pulp-style" than the SDXL version and has a lot more trouble with specific details that the SDXL version does very well with. However, other have had very good results with this version as well.

Link: SDXL version

I hope you all appreciate the irony of training a powerful image generating AI to produce an art style from before computers were invented.

Pulp magazines were a popular form of entertainment that my 99 year old grandmother might have remembered from when she was a child, although she might be too young for the peak of their popularity. Magazines like Fantastic Stories and Weird Tales brought large quantities of cheap, wild stories to the public. Pulp magazines started and popularized such literary genres as "Science Fiction", "Sword and Sorcery", and "Weird Fiction". Their contributions to literature simply cannot be overstated.

However, there was also a period of time when they featured beautiful, wild, controversial, and scandalous, cover artwork, often featuring scantily clad women in peril (although the stories inside the magazine were rarely as scandalous). These covers generated lots of controversy among the public, but also lots of sales.

This LoRA should produce artwork in the style of 1930-1960 pulp magazine cover artwork.

I know this has been done before, there are other LoRAs that do similar, so how is this one different?
Well, first, this was not trained on any pulp magazine covers, instead it was trained on the original artwork that was used for the magazine covers. That means that the training data does not include magazine titles or story names or price tags or advertisement blurbs or any text, just the artwork (and sometimes the artist signature).
Second, this was trained with rich labels on each image, so it should hopefully be good at producing lots of different elements from pulp cover artwork as well as the style with descriptive prompts. I took care to label the color of things and the specific clothing and objects in each training image.

Will this produce SFW or NSFW content?
The style is what I am interested in. Hopefully it can do either SFW or NSFW. However, this was trained on pulp cover artwork, which has a strong tendency to be a bit risque - sexy, but not explicit. I tried to include some more explicit images, but the percentage was very low. All explicit images in the training dataset were labeled with the tag, "nsfw", so if you want NSFW images, try including the "nsfw" tag, if you don't want it, then perhaps include "nsfw" in your negative prompt.

What models and parameters work best with this LoRA?

You are going to have to figure this out on your own. It seems like with this LoRA, lower alphas seem to produce better images, but I really only used this model to generate the cover images. I recommend trying the SDXL version of this instead, compare the sample images from this to the sample images from the SDXL version and you will see why, the SDXL version is much better. The sample images were generated with DreamShaper v8.