The list of 'B' refiners/mints/hallmarks:

• B. R. MacKay & Sons Inc (to do)
• Bache
• Balthrop (to do)
• Bear Paw Mining Co.
• Bell Associates (to do)
• BMR (to do)
• BNE (Bitterroot Nugget Exchange) (to do)
• B&M (Boston and Montana)
• BR (to do)
• BRC (to do)
• Brown Materials
• Bunker Hill (to do)
• Burma Mines
• Buschemeyer