On the cover of the October 1969 issue of Playboy magazine is a blonde-haired, blue-eyed woman smiling demurely, a beach towel draped over one arm, and a plastic telephone receiver held to one ear. She’s visible from the midriff up, topless — this is Playboy, after all — but with her tanned forearms, long hair, and left hand covering her nipples, her breasts squished together to maximize cleavage.