The Exceptional Abacus of Ingmar Zink is a 4126 years old piece made by Ingmar Zink, a merchant living in Athens.
Considering its age and the quality of the work, people consider it of priceless value.
It is engraved with european patterns and some symbols pertaining to Shamanism.
This piece doesn't exist, but as a legend. It is said that in the year 449, Radek Zink, the owner, made use of it in Prague to empower the Zink family. Now it is lost, or broken, we will never know.