The Unique Cap of Yadidatum Zapik is a 4399 years old piece made by Yadidatum Zapik, a vagabond living in Eridu.
Considering its age and the quality of the work, people consider it of priceless value.
It is engraved with central asian patterns and some symbols pertaining to Ancient Mesopotamian religion.
This piece doesn't exist, but as a legend. It is said that in the year -2372, Yadidatum Zapik, the owner, made use of it in Eridu to empower the Zapik family. Now it is lost, or broken, we will never know.