WTB: Pathé Le Menestrel or Gaulois tracking bar with half-nut

[erunltd]

Looking for a Pathé tracking bar and half-nut like the one in the pics.
Pathé half-nuts are unique as they are fine threads (Approx 50 per inch) which is
not the same as an Edison GEM. European machines use threading in
millimeters not inches.

If you have one of these, let me know. They are commonly found on the
Pathé Gaulois or le Menestrel which looks like an Edison GEM.

If you have one or know the whereabouts, please let me know with pic
and price. Thanks