[ Feature ]
Form : Shô-bu-zukuri, iori-mune. Mihaba is relatively wide. Kasane has thick shinogi but reduced thickness its mune. Saki-zori attached. There are bô-"hi"s and soe-"hi"s both on face and the other. They have maru-dome stops.
Nakago : Ubu. Yasurimes are suji-kais. Saki is katayama-gata. One hole.
Jigane : Ko-mokume, well grained. Ko-nies attached. Ô-hada mixed.
Hamon : Komidare in sugu tone. Ko-gunomes and ko-ashis mixed. Basically it is in nioi but konie attached. Mune was tempered.
Boushi : Saki is in more or less becoming sharp. It turns in komaru.

About koshirae : "黒蝋色塗鞘脇差拵"(kuro-roiro nuri-zaya wakizashi koshirae), "蝦蟇仙人図"(gama-sennin-zu tsuba),("鉄地高彫象嵌色絵"(iron-base, taka-bori, inlay, iro-e)), "藻草貝図縁頭"(Mogusa-kai-zu fuchigashira)("赤銅魚子地象嵌色絵"(Shakudo nanako-ji inlay, iroe)), "毘沙門天図目貫"(Bishya-mon-ten-zu menuki)("赤銅地高彫金色絵"(shakudô-ji, takabori, kin-iroe)) 　

Generally, the swordsmith of Bicchû in Edo period, belonged to Ô-tsuki family (who signed "国重") or Kô-no family (who signed "為家"). Both families had strong relationship each other. They had common styles for swords creation. The swords which came from Ô-tsuki family were called "Mizuta-mono". The swords which came from Kô-no family were called "Azae-Mizuta". In the book "日本刀名鑑", it mentions "swordsmiths of Mizuta lived separately. Specifically, they lived in Kôtsuki county Ebara, Eiga county Azae and Eiga county Mizuta". MIZUTA Kunishige was hired by MOURI Motochika in Eiroku 11(1568), then moved to Azae in March Tenshô 2(1574), aside of Kôriyama-jô castle of Geishû county, was first generation. This sword was created by second generation Kunishige(e.g. "三郎兵衛尉国重"(Saburo-hyôe-no-jyô Kunishige) who worked actively around Keichô era. Third generation Mizuta Kunishige has been particularly famous as "大与五国重".

Referenced materials : "新版 日本刀講座 新刀編" by HONMA Kunzan, SATÔ Kanzan, Yûzankaku publishing, Heisei 9(1998), "日本刀銘鑑" ISHII Masakuni, supervised HONMA Kunzan ( Yûzankaku publishing), Heisei 15(2003)

[ Conditions ] There looks some rough part above hamachi of reverse side, around monouchi of face side of hiraji and shinogi side.