Good spot from Steve on the forums – this extensive gallery of hair photos (men and women) from the 1960s and into the 70s.
Yes, these are the photos often used to adorn the walls of barbers and hairdressers during that period. These days they're a mix of amusement and inspiration, should you be wanted something a little different and more authentic, as opposed to going for the 'Weller' or shaven head. That's if hair is still an issue if you're a man.
There's a women's shot over the page. If you want to see more, head over to the Haidresser's Journal website and enter your year of choice into the search box – some years have more than others on the site.