Nitroplait
Well-known
Also on some of them the spool doesn't have a film-trapping slot, but instead just a spot-welded tab I guess you're supposed to tuck the film end under and fold it over, but these are hard to load and it usually pulls out at the end of the roll.
I would be intersted to see a pic of that spool type. I tend to think that they may not be original. I have bought quite a few FILCA's and IXMOO's over time and once in a while one may come with wrong spool, mostly plastic from single use cassettes, though.