The Standard Glasses of Nguyen Rajshuklam is a 917 years old piece made by Nguyen Rajshuklam, a clerk living in Ulaanbaatar.
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 Bhakti.
This piece doesn't exist, but as a legend. It is said that in the year 1092, Nguyen Rajshuklam, the owner, made use of it in Ulaanbaatar to empower the Rajshuklam family. Now it is lost, or broken, we will never know.