The Historic Shoe of Khorshid Gang is a 1743 years old piece made by Khorshid Gang, a leather worker living in Isfahan.
Considering its age and the quality of the work, people consider it of high value.
It is engraved with central asian patterns and some symbols pertaining to Mandaeism.
This piece doesn't exist, but as a legend. It is said that in the year 883, Yagiz Gang, the owner, made use of it in Istanbul / Constantinople / Byzantium to empower the Gang family. Now it is lost, or broken, we will never know.