Have you read the book “The Sex Collectors”? There’s a section about this subculture of erotic art enthusiasts who commission and trade “ex libris” labels. This looks like an example. As the book was (sadly) unillustrated, it’s interesting to see, so thanks!
"...the girls are prepared in the reformatory’s punishment room, naked, lying on their backs on special benches, bound with their legs spread above their heads, shamefully showing the two holes usually hidden..."
Have you read the book “The Sex Collectors”? There’s a section about this subculture of erotic art enthusiasts who commission and trade “ex libris” labels. This looks like an example. As the book was (sadly) unillustrated, it’s interesting to see, so thanks!