Ordering number : 15144
Katana in Shirasaya with Koshirae(NBTHK Hozon Paper)
Signature :MUMEI (UNSIGNED) ATTRIBUTED AS SHINSHIN TO JYOMYO.
Aoi Bijyutsu Syosin (genuine ) Kanteisyo: NBTHK Hozon Token.
(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku Jyo saku and regular saku)
This sword belongs to Regular saku ranking.
The blade was polished.
Habaki : Copper single habaki.
Blade length : 69.6 cm or 27.40 inches.
Sori :1.8 cm or 0.70 inches.
Mekugi : 4
Width at the hamachi : 3.15 cm or 1.24 inches.
Width at the Kissaki : 2.33 cm or 0.91 inches.
Kasane : 0.765 cm or 0.30 inches.
Era :Late Edo period.
Shape :The blade looks oosuriage mumei which is wide
and thick with deep sori and longer kissaki.
Jigane :Koitame hada well grained with jinie attach
but there are some lose hada and small openings.
Hamon :Niedeki gunome midare with ashi and Yo, sunagashi.
Sspecial feature:According to the NBTHK Shinsa,
the blade was judged as
shinshinto Jyumyo which looks like Koto blade.
Probably some person made this sword treated as old sword
instead of Shinshin-to sword.
Saya :black brown color saya.
Tsuba :On the square shape copper Tsuba,
a dragon and waves are engraved.
Menuki : A cow is engraved by copper plater.
Fuchikashira: copper plate.
From Aoi Art: The blade looks like old Koto blade
at a glance but if we check the blade carefully
The Jigane is tight without Utsuri and also Hamon,
we find out the blade looks not so old.
It is said that Mumei swords are not Gimei sword.
Even though Shinshinto Jyumyo sword,
was treated as Gifut for happy event like birthday,
promotion gift amd others.
so Jyumyo swords had been welcomed by Samurai.
There are some KIzu on the blade,
but the sword is nice for Iai practice, kansyo and so on.
Koshirae is also well balanced for this sword.
Aoi Art estimation paper : NBTHK Hozon Token: whole Oshigata.