The Historic Abacus of Yoruba Salt is a 3526 years old piece made by Yoruba Salt, a merchant living in Bambandyanalo.
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 -1496, Yoruba Salt, the owner, made use of it in Bambandyanalo to empower the Salt family. Now it is lost, or broken, we will never know.