And this important ring was just left, literally, lying around?
I find that a little hard to believe. I wonder if they had counterfeiters back then?
Could be. But they did find it in the building that used to be the administration headquarters for the Romans. Perhaps that is why they think it was used by a staff person to mark official documents - and not THE ring of Pilate? Stuffed in some drawer when the paper pusher retired.
Not at all. Archeological finds abound. What, you prefer the Merseburger Zaubersprüche?