We have conformation that it
arrived this morning with some photos alleged.
Zoomis notasufficientlygood but the shape
of the circle seems to be clear enough.
A kind of spiral in a circle with many lines
disposed transversely. A quite good stuff.
Discovered in the morning of
May, 21 by Demetrio Santini.
Location: Bracciano, Bertinoro - FC (Italy)
Waiting for further news.