This is a sword fitting (fuchi) from a Japanese sword of unknown age. The exterior has discoloration, stains, and white, possibly corroded deposits, and the appearance is not good. It is a fuchi that was attached to a sword by Fujiwara (name unclear), and the material is metal, but it is a non-magnetic metal, possibly copper, but the material is unknown. Please consider it for collections, etc. Sold as-is, no warranty, and treated as junk, so please understand this before purchasing.