I've found this amazing tiny glass bowl in a colour that looks like uranium glass but it isn't. The bowl is 5.5cm diameter and the glass is completely clear of bubbles or flaws, the very top edge is clear so I'm not sure if it's cased or flashed glass. The base is cut flat but not polished, the glass runs down to a point inside, which gives an interesting optical illusion. It's signed on 2 sides of the base but I can't make it out at all. Anyone any ideas?