I don't have a clue. I bought this piece yesterday at a thrift store. I am not the person that buys this kind of objects, however something on it caught my eye...(beauty, I think). Indeed it is different, but sadly it has no a brand, or mark on it. I noticed that the bottom of the piece is rough to the tact. And it is not transparent (my first impression was like if someone put candle wax on it) however whatever it is is inside the glass. The piece is heavy, and has a very few tiny bubbles. Is there anything else that I may look to help ID it? Thanks!