Marchal 660 fog light. Very cool fluting of the lenses and the large nipple center.
For my 3.0 CS I felt they were too large, more of a 2002 thing.
$400.00 plus shipping or can pick up at Vintage in Saratoga.
See link for details. https://www.e9coupe.com/forum/threads/fs-marchal-660-fog-lights-soft-covers-shift-pattern-transfers-parts-radio.30191/
Originally bought from Enoz so you know his reputation.
IMHO too large on n E9 but perfect on a NK or 2002
HBChris tells me there is a prism within the steering column of the NK. The E9 has it and the 2002 does not.
The intent is that this prism directs the light from a bulb within the steering column to the keyhole and parts of the dashboard.
I have made reproductions of these and sell them for $16.00