Honestly, the particular site it came from wasn't what I was interested in and I have no doubt a ceramic marble or agate, a CAC or whatever could have been found buried on Peltier property. I wanted to know how much confidence I could have that this particular marble was dug there and, thereby, how much confidence I could have that it was not a modern knock-off. I wanted to use it as a reference to search for more examples, which I did, and successfully so, I think.
Does it look to you like the ones I got out of Germany are related to the one Billy found? That is what I am most interested in. And thanks for chiming in. 🙂