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!
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...
Marble is a type of stone used as tiles for floors. Marble top is a long polished piece of marble finished specifically to be used as a table/work top..e.g. as a kitchen work top.