The Decayed Compass of Elanur Dell angel is a 3350 years old piece made by Elanur Dell angel, 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 Folk religion.
Though exposed in this museum, this piece belongs to the last of the Dell angel family, Farid, currently living in Babylon.