The Disturbing Bottle of Gazualum Heimdall is a 696 years old piece made by Gazualum Heimdall, a con artist living in Jerusalem.
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 Judaism.
This piece doesn't exist, but as a legend. It is said that in the year 1775, Irem Heimdall, the owner, made use of it in Istanbul / Constantinople / Byzantium to empower the Heimdall family. Now it is lost, or broken, we will never know.