The Historic Crown of Nirgal Chausikuson is a 174 years old piece made by Nirgal Chausikuson, a monarch living in Istanbul / Constantinople / Byzantium.
Considering its age and the quality of the work, people consider it of some value.
It is engraved with central asian patterns and some symbols pertaining to Anabaptism.
Though exposed in this museum, this piece belongs to the last of the Chausikuson family, Eymen, currently living in Istanbul / Constantinople / Byzantium.