The Decayed Sickle of Simeon Onvaou is a 197 years old piece made by Simeon Onvaou, a farmer living in Isfahan.
Considering its age and the quality of the work, people consider it of no value.
It is engraved with central asian patterns and some symbols pertaining to Anabaptism.
This piece doesn't exist, but as a legend. It is said that in the year 1811, Simeon Onvaou, the owner, made use of it in Isfahan to empower the Onvaou family. Now it is lost, or broken, we will never know.