I don't know for sure, but from what I've read Tronchet scope sounds like a simple anamorphic adapter like the Schneider ISCORAMA 56.
If you are looking for anamorphics both Hawk and Panavision have Super 16mm anamorphic options. I know people have been using the Laowa Nanomorphics, especially 27mm, on S16mm a bunch as well. They all have a squeeze factor of around 1.33-1.5.
I hope this was of some help.