Ordering number : 19398
Katana in Shirasaya with Koshirae(NBTHK Tokubetsu Hozon Token)
Signature : Suifu ju Katsumura Norikatsu Saku Kore
Manen 2 ki 2gatsu hi
Koto : Suekoto
(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku Jyo saku and regular saku)
This sword belongs to Jyo Jyo saku ranking.
The blade was polished.
Habaki : Gold foiled single habaki.
Blade length : 75.7 cm or 29.80 inches.
Sori : 1.8 cm or 0.70 inches.
Mekugi : 1
Width at the hamachi : 3.01 cm or 1.18 inches.
Width at the Kissaki : 2.02 cm or 0.79 inches.
Kasane : 0.74 cm or 0.29 inches.
The weight of the sword 820 grams.
Era : Edo period Man-en２（１８６１）
Shape : regular size with deep sori and long kisaki.
Jigane : Masame hada well grained with jinie attach and chikei.
Hamon : Clear Niedeki suguha with small ashi
Special feature: Katsumura Norikatsu was born in Mito
and named Katsumura Hikoroku and has been active
as the fuderal lord ofMito family. He has made sword
that focused on its sharpness. His sword were mostly Masame Suguha
sword. He has made similar swords to Hosho
which then becomes Masame hada. Jitetsu is masame jigane.
This piece is wonderful Masame deki sword that look like Hosho.
Tsuba: Mokko shape iron Tsuba, pine tree, crane, turtle, and anker are engraved with gold color.
Fuchikashira: Kiri Mon is engraved with gold color.
Saya: Black and red color Kawarinuri saya.
Menuki: Yajiri is engraved with gold color.
From Aoi Art : Masamehada is rare and popular
among collectors. Yamato Hosyo is said to have been a pioneer
of Masamehada, it was inherited by later craftsman such as Kunikane
in Sendai, Norimune, Norikatsu, Gassan Sadakatsu and lasted
until the end of the Edo period. However, it is difficult to make
masamehada, so there are a few beautiful masame hada like this work.
NBTHK Tokubetsu Hozon Token
Aoi Art estimation paper: whole Oshigata.