The Historic Abacus of Menhet Kerubogil is a 2495 years old piece made by Menhet Kerubogil, a merchant living in Carthage.
Considering its age and the quality of the work, people consider it of high value.
It is engraved with african patterns and some symbols pertaining to Shamanism.
This piece doesn't exist, but as a legend. It is said that in the year -61, Osorkon Kerubogil, the owner, made use of it in Tipasa to empower the Kerubogil family. Now it is lost, or broken, we will never know.