Women’s ring made of oxidized silver (925°) with the Disc of Phaistos. The Disc of Phaistos is a disc of baked clay, which is an archaeological find from the Minoan city of Phaistos in southern Crete and probably dates to the middle or late Minoan Bronze Age. It is one of the most famous mysteries of archeology, since the purpose of its construction remains unknown. The meaning of what is written in it is still unknown.