Did you check with ATS?
They have the most ruthlessly thorough pile of ferrets I know of. Seems like I saw something about that a week or 3 ago on there—may have been the same thing you’ve been finding. Maybe not.
Seems to me there were some different features in the items on ATS about it. And, there were some ATSers from the region in Italy purportedly involved. IIRC.
What is ATS?