The Decayed Compass of Dazuzum Taoh is a 2540 years old piece made by Dazuzum Taoh, a engineer living in Istanbul / Constantinople / Byzantium.
Considering its age and the quality of the work, people consider it of no value.
It is engraved with central asian patterns and some symbols pertaining to Yazdanism.
This piece doesn't exist, but as a legend. It is said that in the year 1586, Friedrich Taoh, the owner, made use of it in Bruges to empower the Taoh family. Now it is lost, or broken, we will never know.