Just when I think I've found all the pictures of former Lancôme model Nancy Dutiel that I can possibly find, I take a chance and look for some more . . .and I find more. :-)
These Lancôme ads are from early in Ms. Dutiel's stint as their spokesmodel. The ad above is from 1977, while the one below is from 1978.
Both ads feature double images of her, and black and white and in color, with the "From sensible to sensational" tagline used by Lancôme at the time. Going into the 1980s, that slogan was dropped.