Barbie has been one of Mattel's biggest franchises, her look & style evolving over the course of time.
In 1970, Mattel experimented with a "living" Barbie doll whose movements are meant to approximate that of real young women. Actress Maureen McCormick (The Brady Bunch) stars in this ad.
Maureen had been doing Barbie ads for Mattel before signing on for Brady Bunch. Gee, y'think maybe this is where they found her?