Perhaps there are very few items with two ore more issuing entities, and perhaps only are exonumia, but they exist.
For example, this token N#126872 was issued by two entities
- Le taxiphone
- Postes, Télégraphes et Téléphones
I wrote as one line (“Le taxiphone / Postes, Télégraphes et Téléphones” ; I had a typo “LaLe taxiphone…” and I submitted a modification request) but the system see this entity as different than “Le telephone” or “Postes, Télégraphes et Téléphones”, of course.