When they made marbles from the beginning it was just scrap from a glass foundry. Marbles could be made from anything from wood to metals. Any valuable marbles today have figures inside them. I saw one of the larger 1 1/2 diameter with a pocket knife...
If there were 10,000 made they were not hand blown unless there were hundreds of marble makers all making the same marble over and over. But I'm not a marble expert. The people on this forum are and they would be happy to help you identify your marbl...
That's the closest thing I could find. If that doesn't help definately hit up someone like Scott Bass over at Surfer Mag. He's pretty active on the board and in the mag. He'd get you a professional answer!