8 XXX : VintageBabes

http://vintage.nudesfor.me/wp-content/uploads/sites/14/2015/04/Three-Naked-Cave-Girls.jpg higher res pic
They look like Bus girls, an old saying for Gals who'd, as an example, would win a beauty contest or two, bus out to Hollywood as aspiring actresses and would end up doing stuff like this - or worse - to make a living.
Source?
Who are they?