Mod Edit: This thread is the direct result of a model id request.
She is a beautiful and very sexy lady.
http://www.egafd.com/actresses/details.php/id/x2787
This picture is from the KK-magazine "Erotic Desire No. 05" from 1979. Thanks go to HansNew, the original poster.
Since "ED" is a reprint magazine, the original set - if there is any - has to be found in a KK mag from 1979 or, most likely, years earlier. Many KK hardcore mags contained at least one solo set, but I haven't found this one yet. Another possibility is it originates from the KK mag "Sexy Girls", which issues are mostly hard to come by these days.
BTW: I happened to be friends with one of the actors of "Biggi, eine Ausreisserin" (the grey-haired and ultra-thin "Doctor", a customer of the bordello where Biggi is working close to the end of the movie), but he did only a few porn movies back then, mostly for fun, and doesn't know her name. As she is the only somehow "well-known" actress in "Biggi", maybe they hired her for a "quick shot" to bring a little glamour to this allabout quite crappy and campy movie (filmed in and around Duesseldorf, Germany).
Greetings -
Luther