The Exceptional Abacus of Apunanwu Mustin is a 3805 years old piece made by Apunanwu Mustin, a merchant living in Ife.
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 Shamanism.
This piece doesn't exist, but as a legend. It is said that in the year -1682, Urhie Mustin, the owner, made use of it in Ife to empower the Mustin family. Now it is lost, or broken, we will never know.