AS21556 Katana: Yamato Kami Yasusada

Ordering number: AS21556

Katana in Shirasaya(NBTHK Tokubetsu Hozon Paper)　

Signature : Yamato Kami Yasusada
大和守安定

Shinto:Jyo saku ranking:Ryo wazamono cutting test ranking:Musashi.
(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku
Jyo saku and regular saku)
This Yamato Kami Yasusada belongs to Jyo-Jyo saku ranking.
The blade was polished.
Habaki: Gold foiled double habaki.
Blade length : 76.2 cm or 30 inches.
Sori : 1.0 cm or 0.39 inches.
Mekugi : 2
Width at the hamachi : 3.09 cm or 1.21 inches.
Width at the Kissaki : 2.10 cm or 0.82 inches.
Kasane : 0.71 cm or 0.27 inches.
Era : Edo period Kanbun era.
Shape : The blade is rather wide and thick with small sori
like typical Kanbun style.
Jitetsu :Koitame hada well grained with jinie attach
and small chikei work wondeful texture,
Shinogi ji:Koitame hada masanagare.
Hamon : Niedeki deep nioikuchi Gunome midare
with fat soft feeling ashi.
Boshi is round shape and yakisage style.

Special feature : amato (No) Kami Yasusada was a pupil of the First generation
Yasutsugu of Echizen province. The First Shogun Tokugawa Ieyasu permitted Yasutsugu
the First using hollyhock crest and the character Yasu. Yasusada mainly
forged sword at Edo and their collaboration survives.
This katana shows traditional kambun-shinto style.
Yasusada’s sword has good reputation for sharpness.
According to the Fujishiro book even though Yamada asaemon wrote Yasusada as
Ryo wazamono cutting test ranking, judged as the top ranking cut well sword.
This sword is typical Edo Hojyoji or Kotetsu Jigane which is koitame hada well grained jigane.
Also Hamon is very similar with Kotetsu Jyuzu ba hamon with thick nioikuchi and deeo Habuchi bright hamon.
Yasurime is very clear which has been kept in good condition for a long period precious sword.

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