Hey Mike, Thanks for showing those - nice marbles. I would really like to see a couple of more shots of the one in the center and the upper left. The rest look Vitro to me. When I first saw my marble I was almost sure it was Vitro. But it is really swirled up, and you can't detect any cut-lines without a great deal of imagination. And since I have seen Alleys with similar colors, and had gotten input from a couple of other collectors, I went with Alley. But now that I've seen yours, I'm undecided again . . . so thanks a lot for that. lol. -Ric