AS20369-Katana: Hizen Koku Oumi Kami Tadayoshi (6th Generation)

Katana in Shirasaya with Koshirae.(NBTHK Hozon Token)

Signature: Hizen Koku Oumi Kami Tadayoshi (6th Generation)

(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 : Silver single Habaki
Blade length: 69.7cm or 27.4 inches.
Sori : 1.51cm or 0.59 inches.
Mekugi: 1
Width at the hamachi: 2.76cm or 1.08 inches.
Width at the Kissaki: 2.4cm or 0.94 inches.
Kasane : 0.71cm or 0.27 inches.
The weight of the sword 590 grams.
Era : Edoperiod Tenmei era
Shape: Regular width and thickness but deep Sori and longer Kissaki. Good shape sword.
Jigane: Ko-Itame-Hada well grained. Jinie attached beautiful Hizen’s unique Konuka-Hada.
Hamon: Niedeki Suguha with Notare. There are some deep Nioikuchi and soft Ko-Ashi.

Special feature: Hizen Koku Oumi Kami Tadayoshi 6th was named Tadahiro
during his father still alive. He was got the name Oumi Kami
Tadayoshi in Jun of 1790. His sword style is same as 5th
generation. He was dead on February 6th, 1815.

Koshirae : Handachi style
Tsuba: Thick Sukashi Tsuba with fan design.
Fuchikashira, Kojiri: Brass with Nanako plate.
Saya: Very unusual and rare Saya.
Menuki: Engraved Samurai with Yari on frontside, Samurai with Naginata on backside.

From Aoi Art: Katana is Regular but the Koshirae is very rare with no flaws.

NBTHK Hozon Token
Aoi Art estimation paper: whole Oshigata.