The Ivory Snow Box
The famous Ivory Snow laundry detergent box featuring 17-year-old Marilyn Briggs holding a freshly diapered baby. Marilyn posed for the photo around 1969 or 1970. The box was released in late 1972, right around the time "Behind the Green Door" was released. The Proctor & Gamble product's famous tagline was: "99 44/100% Pure."
Right: the original New York Times article as it appeared, May 3, 1973. Click to enlarge.