The Unique Compass of Rachel Nouillator is a 3224 years old piece made by Rachel Nouillator, a engineer living in Troy.
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 596, Aaron Nouillator, the owner, made use of it in Istanbul / Constantinople / Byzantium to empower the Nouillator family. Now it is lost, or broken, we will never know.