No one knows who took the pictures. No one knows where they were taken. No one knows how they came into the possession of someone - and ended up on a ‘vintage’ porn site.
I can make another assumption. Perhaps they belonged to Malcolm X and after his assassination, they fell into the wrong hands?
You can almost bet they were made in a black person’s house. African decor (elephants, jaguars, etc...) and an album collection with Nat King Cole in an album that was released in 1957.