Phaistos Disc: one of archaeology’s greatest mysteries. The disk is covered on both sides with a spiral of stamped symbols

Vintage SMALL CONVEX PHAISTOS DISC PENDANT (20 MM DIAMETER). 
Phaistos Disc: one of archaeology’s greatest mysteries. The disk is covered on both sides with a spiral of stamped symbols. Its purpose and meaning, and even its original geographical place of manufacture, remain disputed, making it one of the most famous mysteries of archaeology.