Ordering number: 20062
Tanto in Shirasaya with Koshirae.(NBTHK Tokubetsu Hozon Paper)
Signature: Sanryu Masamine Saku Kore (Living National Treasure)
Hinoto-Ushi Nen Shogatsu KIchijitsu.
The blade was made in January 1997.
The engraving was made by Senju.
(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku Jyo saku and regular saku)
This sword belongs to Jyo Jyo Saku Saku J ranking.
The blade was polished.
Habaki : Gold foiled double habaki.
Blade length : 27.9cm or 10.98 inches.
Sori :0.2 cm or 0.08 inches.
Mekugi : 1
Width at the hamachi : 2.66 cm or 1.05 inches.
Kasane : 0.57cm or 0.224 inches.
The weight of the sword 180 grams.
Era : 1997, Jan, 1st to 7th lucky day.
Shape : the blade is rather wide and thick longer Tanto.
Jigane :Koitame hadあ well grained with jinie attach beautiful nice texture.
Hamon :Nie deki gunome midare with ash and yo work.
Special feature:Sumitani Masamine, born Sumitani Yoichiro in 1921 was a swordsmith in Ishikawa pref.
Major in mechanical engineering and graduated from Ritsumeikan University in Kyoto,
he entered the research institute of Japanese sword on the campus in 1941 and learned under Sakurai Masayuki, the second son
of a famous swordsmith Sakurai Masatsugu. After that, he moved to Onomichi city in Hiroshima pref.
and learned to forge and polishing the sword at Kokoku Nihonto Tanren-Jo with his sworn brother Yokota Masamitsu.
In the postwar Japan, Masamine set up his own smithy named
Sanryutei in 1956 and studied Bizen-den. He forged special swords to dedicate the Ise-jingu shrine in 1964, 1966, 1969 and 1989.
He became a Mukansa-tosho and a judge of the annual sword-making competition held
by NBTHK in 1966. In pursuit of Bizen-den, he completed especially choji-midare
hamon called Sumitani-Choji. He also studied old iron manufacturing in Kamakura period and reproduced the classical texture of jitetsu.
Masamine was designated one of a preservers of Important Intangible Cultural Assets,
popularly known as Living National Treasures in 1981. He passed away in 1998.
Saya :black brown color wood saya, top place is engraved Kizami.
Tsuba :On the syakudo plate, both sides is engraved lobsters
and painted by gold and copper.
Menuki : a monkey’s design is engraved with gold color.
Kozuka:On the syakudo nanako plate,
Huchikashira: A Japanese boat is connected to the sea where high waves come to the stakes, with gold color.
This is a very moving pattern.
From Aoi Bijyutsu:
As you all know, the sculpture of Kokeguchi Sensyu who was famous sword
carving and Masamine is the most famous national treasure Made this work together
It is a masterpiece sword that I would like to recommend
because it seems that there will be no human national treasure designation for the time being.
Please see the images with wonderful works.
This is a work. Currently, there is no human national treasure
with a Japanese sword, so it is very valuable.
A work that Masami-san made hard on the New Year’s Day in 1997,
and gave a prayerful prayer at the beginning of 1997.
I feel like I can understand the production situation with my feelings.
He has passed away almost a year later.
NBTHK Tokubetsu Hozon Paper
Aoi Art estimation paper: whole Oshigata.