The Decayed Sheet of Friedrich Sferr is a 1339 years old piece made by Friedrich Sferr, a laundry washer living in Lisbon.
Considering its age and the quality of the work, people consider it of no value.
It is engraved with european patterns and some symbols pertaining to Catholic.
This piece doesn't exist, but as a legend. It is said that in the year 813, Juan Sferr, the owner, made use of it in Syracuse to empower the Sferr family. Now it is lost, or broken, we will never know.