Attributed to the Shimosaka group Edo period (1615-1868), 18th century Of hirazukuri configuration with a slight toriizori curvature and forged in itame hada with a gunome midare and choji midare tempered edge with a wide nioiguchi of nie with ashi, yo, sunagashi, tobiyaki and utsuri, the ko-maru boshi with a long return, the omote side carved with a bonji and suken, and the ura with a bonji and gomabashi, the suriage tang with kiri file marks and two holes, 16in (40.6cm) long; in an old wood shirasaya storage scabbard with an attestation to Soshu Sadamune by Hon'ami Chikayoshi (dates unknown), Seventh-generation head of the Kozan Hon'ami lineage, signed and dated 1909 With Kantei certificate no. 14091 issued by the Nihon Token Hozon Kai (Society for the Preservation of the Japanese Sword), dated October 12, 1997