..and the start of a very interesting-looking blog, from the New York Times picture archive.
Andrew J Edinburgh
It actually looks a lot like an upholstered Robin Day polypropylene chair, manufactured by Hille.
That's the Cinema chair and sofa by Lammhults of Sweden.
The shape reminds me of a number of designs by Montis, especially the Geraldine chair by Gerard van den Berg.
I think these are not Starck chairs; the foot detail is less angular and more curved in these than in the comparative
Yes, not Fritz Hansen's greatest moment.
You're absolutely correct, of course, Emcee M.
It looks very much like the S412 sofa by Thonet BUT the examples I've seen don't have that centre leg.
They're by Lawrence Minsker for Fritz Hansen, 1983.