The Exceptional Bottle of Dong Museum is a 1981 years old piece made by Dong Museum, a con artist living in Shanghai.
Considering its age and the quality of the work, people consider it of the highest value.
It is engraved with asian patterns and some symbols pertaining to Jainism.
This piece doesn't exist, but as a legend. It is said that in the year 29, Dong Museum, the owner, made use of it in Shanghai to empower the Museum family. Now it is lost, or broken, we will never know.