Ordering number : 12625
Katana in Shirasaya, with Koshirae(NBTHK Hozon Paper)
Signature : Mumei (unsigned) attributed as Naminohira.
The blade was polished .
Blade length : 74.6 cm or 29.11 inches.
Sori : 2.6 cm or 0.98 inches.
Width at the hamachi : 2.87 cm or 1.12 inches.
Wide at the Kissaki : 1.82 cm or 0.71 inches.
Kasane : 0.67 cm or 0.26 inches.
Era : Early to middle Muromachi period.
Shape : The blade is regular sized with deep sori and also longer kissaki nice looking shape.
Jitetsu : Itame hada well grained and flow.
Some parts has some openings and flow but not serious.
Hamon : Niedeki suguha and double hamon and ashi.
Special feature : The founder of Naminohira School was Masakuni who moved from Kyoto to Satsuma province in the10th century. His works rarely survives so Yukiyasu is thought as the substantial founder. The school continuously made swords there until the last Edo period. The 56th of this school was Iwami (No) Kami Yasuharu who reinforced the school in the Shin-to period. His grandson Yamato (No) Kami Yasuyuki learned under Izumi (No) Kami Masafusa.
The name Naminohira has synonymous meaning with the glassy surface of the water so water transporters and navy men highly appreciate the sword of this school.
The special feature of Naminohira School is its traditional Suguha-hamon and well-grained blackish Jigane.
This sword has some kizu and openings on the ji, but not serious.
NBTHK Hozon Paper
Aoi Art estimation paper : whole Oshigata.
Price：JPY 450,000-.(including shipping and 100% insurance fee)