Katana in Shirasaya.(NBTHK Hozon Token)
Signature : Mumei (Mutsu Kami Kanetaka)
(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku Jyo saku and regular saku)
This sword belongs to joy Jyo Saku ranking.
The blade was polished.
Habaki : Silver single habaki.
Blade length : 81.5 cm or 32.09inches.
Sori : 0.5cm or 0.2 inches.
Mekugi : 1
Width at the hamachi : 3.0cm or 1.18 inches.
Width at the Kissaki : 2.2cm or 0.86 inches.
Kasane : 0.7cm or 0.276 inches.
The weight of the sword 905 grams.
Era : Edo period Manji era. 1658.
Shape : The blade is very long(81.5cm) and thick with small sori Kanbun shinto style.
Jigane : Itame hada and mokume hada mixed with jinie attach and shirake utsuri appear.
Shinogi ji:Itame hada and mokume hada mixed which looks like Muku kitae hada.
Hamon :Niedeki round style gunome midare arm hamachi area to Yokoto line.
Bo-shi is round shape.
Special feature: This work is Ubu Mumei, but it is a work appraised by Mutsu Kami Kanetaka and judged at the Japanese Sword Museum. It is a work of 81.5cm and long length, and one Mekugi ana Ubu Nakago’s work, Yasurime is Takanoha.(the shape looks hawk’s feather) Jigane is a mixture of Itame hada and Masame hada, and Shinogi ji is also considered to be Muku kitae from the same Jigane, and I think it is a rare work for shinto.
From Aoi Art : Since the Warring States period of the Muromachi period ended and the Edo period became a little calm, many sword makers in Seki moved to various places in search of work because the demand for swords dropped sharply. It is probable that Mutsu kami Kanetaka was in a similar situation and he decided to relocate himself. This work was rather good for Mutsu kami Kanetaka, and it is unknown why this sword was Ubu Mumei not engraved the signature.
BTHK Hozon Token
Aoi Art estimation paper: whole Oshigata.