No idea really.
I have seen some items come out of Mexico with that soldered metal covering.
The crudeness of the lips make me think it was never intended to be sealed with a cork so it was probably decorative in nature. Would make a neat candle holder.
I had a double spouted bottle once, looked a bit differrent from the way this one is made . I was told it was a ceremonial bottle pertaining to an Indian wedding , do not know if that was correct or not , this one may be something different being the top is made differently . This could be a carafe that held two different variations of liquid as well if the inside is made as two compartments.