Katana : Kuniyuki (Rai)
Katana in Shirasaya, with Koshirae (NBTHK Tokubetsu Hozon Paper)
Signature : Kuniyuki (Rai)
The blade was polished
Habaki: Gold single foiled habaki
Blade length : 64.6cm or 25.43inches.
Sori : 1.8cm or 0.7inches.
Mekugi : 1
Width at the hamachi : 2.62 cm or 1.03 inches.
Width at the Kissaki : 1.8 cm or 0.70 inches.
Kasane : 0.46 cm or 0.18 inches.
Era : Kamakura Period Circa Shougen (1250-1260)
Shape : It is sugiage katana with Kuniyuki engraved clearly on the nakago
Jitetsu : Koitame hada well grained with jinie attached. It is Yamashiro jigane.
On the ji there is some kizu but it is not serious. It is graceful piece of work.
Hamon : Konie structure suguha with some gunome midare mixed.
Boshi is round ended.
Special feature : Kuniyuki is said to be the head of Rai school Kuniyoshi's son
and Kunitoshi's father. He used two letter 國行( Kuni and Yuki) signature.He was called Rai Taro.
It is said that Kuniyuki is the actual head of the Rai school
and passed down to Kunitoshi, Kunimitsu and Kunitsugu.
Mitsukane, Ryokai are also student of Kuniyuki and so as the Enjyu and Nakajima rai
who have moved to Kyushu Kikuchi. This piece has passed more than 760 year
and yet there is feeling of dignity in this piece It is surprising to see
from the clearly remaining signature that this piece was cherished carefully.
It is one of the precious Kuniyuki work which has passed more than 760 years.
Tsuba :Syakudo plain plate which is called Kenjyo Tsuba.
Saya : On the black roar saya, 11 air family crests are painted with gold color.
Menuki : On the syakudo nanako plate, engraved air family crest with gold inlay.
Kozuka : Kogai:On the syakudo nanako plate, engraved air family crest with gold inlay.
Aoi Art estimation paper : whole Oshigata.
NBTHK Tokubetsu Hozon Paper
NBTHK Hozon Toso-Gu. Kozuka and Kogai: Mumei Yoshioka school.