AS20294-Katana: Yamato Kami Yoshimichi Saku (First generation)

Katana in Shirasaya(NBTHK Tokubetsu Hozon Token)
Signature: Yamato Kami Yoshimichi Saku (First generation)

(We divide 4 sections for each sword as Saijyo saku, Jyo-jyo saku Jyo saku and regular saku)
This sword belongs to Jyo Jyo Saku ranking.
The blade was polished.
Habaki :　silver single habaki.
Blade length :　71.2　cm or 28.0 inches.
Sori : 0.8 cm or 0.31 inches.
Mekugi : 　2
Width at the hamachi : 2.94 cm or 1.15 inches.
Width at the Kissaki : 1.89 cm or 0.74 inches.
Kasane : 0.71 cm or 0.27 inches.
The weight of the sword 670 grams.
Era : Edo period Kanbun era.
Shape : Wide and thick blade. Shallow Sori and longer Kissaki
Jigane : Koitame-hada well garined. Jinie attached Osaka Jigane
Hamon :Niedeki. Yoshimichi usually make Gunome-Midare swords but this sword is Sudareba style.Boshi is Notare round shape, Mishita style. Round burn on both side.

Special feature:Yamato (No) Kami Yoshimichi, born MIshina Uzaemon was
the second son of Tamba (No) Kami Yoshimichi the First in
Osaka. Yamato (No) Kami Yoshimichi forged Sudare-ba
hamon on his early works. Influenced by Kobushigata-choji
Kawachi (No) Kami kunisuke, he showed excellent workmanship. Yoshimichi created a characteristic choji-midare including Tora-no-o, tiger tail in Japanese that is a
point worthy of appreciation.
This blade is Suguha hamon which is very rare item for the
Yamato Kami Yoshimichi.

From Aoi Art: This is very rare sword, Yamato Kami Yoshimichi with
Sudareba. It is clear and elegant Sudareba. Also it has round
burn at Hamon of Kissaki, this is special feature of Osaka
3rd generation but it seems Yamato Kami Yoshimichi did it
before them. It is interesting. Maybe he was left Tanba Kami
Yoshimichi and was influenced by Kawachi Kami Kunisuke
and make a sword same as him. This sword has a
characteristic choji-midare including Tora-no-o, tiger tail in
Japanese that is a point worthy of appreciation.

NBTHK Tokubetsu Hozon Token
Aoi Art estimation paper: whole Oshigata.