The Beautiful Crown of Poyraz Hannahfitz is a 236 years old piece made by Poyraz Hannahfitz, 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 Gnosticism.
Though exposed in this museum, this piece belongs to the last of the Hannahfitz family, Ece, currently living in Isfahan.