-, 26th Session — Designated March 2, 1979
, : school (一文字)
Measurements 49.5 cm, 0.9 cm, 2.75 cm, 1.9 cm, 3.0 cm, 13.5 cm, almost none
Description Keijo: construction, ; shallow ; that is somewhat compact. : ; on the upper half of the it inclines toward ; fine ; stands out. : A flamboyant in with undulations and alternations; with and ; deep , with ; and appear; there are places with (staining). : with . : None. : Greatly shortened (); tip a shallow ; ; two (the central one plugged); .
Artisan school
Era Mid- period
Explanation The lineage flourished across a long span—from the early through late period, and further into the era—prospering in various locations within Province such as Fukuoka, Yoshioka, Katayama, Iwato, and others, and producing many smiths.
This displays a brilliant with marked undulations; the is deep. In the there is conspicuous . On the basis of these characteristics, it is regarded as a work of the school from approximately the middle of the period.
(Designation document)
, : school
: ; the inclines toward ; fine ; stands out. : with and ; with ; containing and . : Greatly shortened (); tip a shallow . : ; two .
As a result of examination, the above is from the mid- period, and is hereby designated an Important Sword ( ) on March 2, 1979.
The Society for the Preservation of Japanese Art Swords () President: Honma Junji (本間順治)