I recently received these bells and don’t have the slightest idea of their age or real application. They look to be brass and are not magnetic. They are from India and are marked accordingly. In addition, one of the bells is marked with “OMH” in capital letters. Each bell is numbered; the smallest bell is a six and the largest is a 12. Finally they came with a leather belt and ties. The ties, however, suffer from dry rot and are very delicate. I was told these bells were actually used on a cow which, frankly, makes sense. I haven’t been able to find much on crotal bells from India and I’m hoping someone in this forum can help with some insight.