The Historic Crown of Bugidai Tenebre is a 591 years old piece made by Bugidai Tenebre, a monarch living in Shanghai.
Considering its age and the quality of the work, people consider it of some value.
It is engraved with asian patterns and some symbols pertaining to Buddhism.
This piece doesn't exist, but as a legend. It is said that in the year 1637, Banyong Tenebre, the owner, made use of it in Stockholm to empower the Tenebre family. Now it is lost, or broken, we will never know.