Nubian Hathor-Headed Magic Crystal Amulet, 743-712 BC
From the Napatan Period, reign of Piye (Piankhy), found at el-Kurru, Sudan. The crystal ball amulet is surmounted by a gold head of Hathor crowned with disc and horns. The ball is bored vertically and has a gold disc at the base on which it stands. This probably used to contain substances believed to have magical properties.
Piye was a Kushite king and founder of the 25th Dynasty who ruled Egypt from 753/752 BC to c. 722 BC. He ruled from the city of Napata, located deep in Nubia, modern-day Sudan. Piye was the father of Taharqa, who would go on to be the most prosperous ruler of the 25th Dynasty due in large part to the successful campaigns of his father.