Early Koto Katana with Koshirae
Early koto period Katana in koshirae.
Nagasa: 65.0 cm Sori: 1.4 cm.
Moto-haba: 29 mm. Saki-haba: 19 mm.
Moto-gasane: 6 mm. Saki-gasane: 4.5 mm.
Nakago: 20.3 cm. Weight: 566 g.
Mumei o-suriage. Shinogi-zukuri shape, Kamakura period Ca.1200 to 1300 era. The temperline is hoso-suguha temper throughout the blade and has healthy temper at the point. The forging grain is tight itame mix with masame-hada, there are large nioi scattered all thoughout the hada. There are no nicks, bends or cracks and the cutting edge is razor sharp. It appears to be an old Yamashiro den school blade.
Sword is in excellent japanese polish with new tsuka and saya. Fittings are antique solid silver with vine motif, menuki are shakudo - can't quite make out what they are, but they look like cherry blossom trees. Tsuba is copper with shakudo rim, with pine and water wheel motif. Habaki is solid silver.
This katana belonged to a Japanese sensei which went into a nursing home and his family decided to sell off his collection. It was one of the blades he used for iaito kata.
There are kirikomi battle scars on the mune near the habaki from blocking sword strikes - they are quite old and have never been polished out, and some kitae kizu. There are 5 menuki ana in the nagako - it was once probably a long tachi blade.
Overall a fine example of a solid koto katana which was used in battle and has been well cherished. There are some cosmetic flaws for those collectors looking for a pristine art sword. This is a samurai weapon first, art sword second. But the cosmetic flaws are acceptable considering the age of the blade.