AS25166 Katana: Mumei(Unsigned)(Chiyozuru Morihiro)(NBTHK Tokubetsu Hozon Token)

Katana in Shirasaya with Koshirae (NBTHK Hozon Token)

Inscription: Mumei(Unsigned)(Chiyozuru Morihiro, 千代鶴守弘)

We divide works in to Saijo Saku, Jyojyo Saku, Jyo Saku,and Regular Saku.
This piece is ranked as Jyojyo Saku for Mumei(Chiyozuru Morihiro).

Habaki: gold-plated double habaki
Blade Length: 70.0cm (27.56in)
Curvature: 1.7cm (0.67in)
Width at Base(Motohaba): 3.12cm (1.23in)
Width at tip(Sakihaba): 2.40cm (0.94in)
Thickness: 0.70cm (0.28in)
Blade Weight: 730g
Era: around Nanbokucho period, 14-15th century
Shape: wideO-suriage Mumei blade with deep curveture and long kissaki. Bohi is carved.
Jigane: Itame and Mokume with faint utsuri
Hamon: Suguha mixed with Ko-gunome and Ashi.

Features: The Chiyozuru school refers to a group of swordsmiths from Echizen, said to have originated when Rai Kuniyasu moved to Echizen, and they are therefore also known as “Echizen Rai.”
The carved grooves of bohi and sohi are characteristic of the Chiyozuru school, designed to achieve both weight reduction and strength.

NBTHK Tokubetsu Hozon Certificate
Aoi-Art estimation Paper
whole Oshigata