These awesomely bad covers are part of a collection of the covers from Lesbian Pulp Novels:
Included here are twenty-five illustrated front and back covers from pulp fiction novels dating between 1935-1958. This small collection of novels is part of the Beinecke Rare Book and Manuscript Library's growing collection of lesbian, gay, bisexual, transgender, and queer materials representing the fields of history, literature, cultural studies, popular culture, the arts, and design. These novels, named after the inexpensive wood pulp paper on which they were printed, could be found at magazine and newspaper stands, drugstores, and bus terminals.
They amuse me and make me a bit sad.
You can more on the Yale website for the Beinecke Rare Books and Manuscripts Library.