Hi,
I can't help on brand identification, but that may not even be a "B" on the bell. It is definitely a C Clef, but it could also be cleverly denoting a brand starting with the letter B. Before any one gets smart and says it is an alto clef; It has to be on the staff to tell which voice it stands for. Off the staff, it is just a C clef.
Good luck in your search.
I can't help on brand identification, but that may not even be a "B" on the bell. It is definitely a C Clef, but it could also be cleverly denoting a brand starting with the letter B. Before any one gets smart and says it is an alto clef; It has to be on the staff to tell which voice it stands for. Off the staff, it is just a C clef.
Good luck in your search.