The Famous Abacus of Khorshid Lacapere is a 3433 years old piece made by Khorshid Lacapere, a merchant living in Eridu.
Considering its age and the quality of the work, people consider it of priceless value.
It is engraved with central asian patterns and some symbols pertaining to Yazdanism.
This piece doesn't exist, but as a legend. It is said that in the year -902, Thea Lacapere, the owner, made use of it in Prague to empower the Lacapere family. Now it is lost, or broken, we will never know.