The Famous Abacus of Gwafa Medinaoui is a 3408 years old piece made by Gwafa Medinaoui, a merchant living in Khami.
Considering its age and the quality of the work, people consider it of priceless 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 -1331, Iput Medinaoui, the owner, made use of it in Khami to empower the Medinaoui family. Now it is lost, or broken, we will never know.