Ordering number : AS18131
Tanto in Shirasaya with Koshirae.(NBTHK Tokubetsu Kicho Paper)
Signature : Mumei (Oishi-Sa)
(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.
Blade length : 27.4 cm or 10.78 inches.
Sori : 0.3 cm or 0.11 inches.
Mekugi : 2
Width at the hamachi : 2.59 cm or 1.01 inches.
Width at the Kissaki : 0.3 cm or 0.11 inches.
Kasane : 0.44 cm or 0.17 inches.
Era : Nanbokucho period.
Shape : Mitsumune style, relatively wide nice shape Tanto.
Jigane : Ko-Itame Hada well grained with Jinie attach.
The Jigane is beautiful.
Hamon : Nie Deki, Ko Gunome Midare.
There are fine Sunagashi and Kinsuji.
Boshi is Togari Gokoro Hakikake style.
Special feature: Oishi Sa is a sword a sword smith of Samonji school.
They live in Chikugo Oishi. So they were called the Oishi Sa.
They were active from late Nanbokucho period.
From Aoi Art: In Nanbokucho period, Samonji school moved to Hizen and Chikugo province. They called Hirado-Sa and Oishi-Sa.
This blade has characteristic Jigane and Hamon.
The blade is wide and healthy. The Mune is Mitsu Mune style.
Saya : Brown Kawarinuri Saya.
Tsuba : Iron Tsuba, dragon is engraved.
Menuki : Wheel? is engraved.
Fuchi Kashira: Iron, chickens are engraved with gold, copper and Shakudo color.
Kurikata: Iron, birds are engraved.
NBTHK Tokubetsu Kicho Paper
Aoi Art estimation paper : whole Oshigata.