This is a vintage mid-century modern serving bowl made of hand-blown glass. The bowl has a smooth pattern, tapered shape, and orange color with a single controlled bubble. The bowl has a height of 3.5" and a diameter of 8". It weighs 2.2 lb and is handmade. The bowl has a unique amberina glow under black light. The shape is like a Star Trek bowl but the controlled bubble makes me think Krosno. I couldn't find any matches so I'm guessing. Let me know if you know what it is!! The bottom is polished smooth.