The Decayed Gold mask of Habtamu Barmankin is a 2972 years old piece made by Habtamu Barmankin, a goldsmith living in Philae.
Considering its age and the quality of the work, people consider it of no value.
It is engraved with african patterns and some symbols pertaining to Ancient Egyptian religion.
This piece doesn't exist, but as a legend. It is said that in the year 1305, Augustus Barmankin, the owner, made use of it in Ulaanbaatar to empower the Barmankin family. Now it is lost, or broken, we will never know.