説明
Antique Japanese Sword Wakizashi Signed by Osafune Norimitsu with NBTHK
Tokubetsu
Hozon
Certificate
【Description】
This blade was signed by Bishu Osafune Norimitsu (備州長船則光) in the 7th year of the Bunmei era (1475: Late Muromachi period). Bishu(備州)is a larger area in today’s Okayama&Hiroshima prefecture. Bishu consists of Bizen(備前), Bitchu(備中), and Bingo (備後). Osafune is the name of the prestigious school located in Bizen province.
The maker’s name , Norimitsu, lasted more than 10 generations (Late Kamakura- The end of Muromachi period). Based on the year this blade was forged and the active period of other generations, it was signed by the 6th-gen Norimitsu, also known as Bishu Osafune Goro Zaemon no Jo Norimitsu. He is one of the most famous Norimitsu.
The swordsmiths in Bizen produced many swords during the Muromachi period, as it was in the middle of the Sengoku period(Warring State period). The demand for weapons increased among strong feudal lords. It would be nice to have a piece forged in the warring state period when there was so much rivalry between warlords. It was possible that this blade was ordered by a Samurai and he might have carried it in a battlefield.
The History of Bizen Osafune School
It is said that Osafune school was founded by Mitsutada (光忠), who was active during the mid-Kamakura period. Bizen Osafune school was the biggest one of all other schools in Bizen province, and they received many orders from feudal lords or renowned Samurai. They were called Osafunemono and beloved by Samurai warriors.
Among the swordsmiths who belonged to this school, Nagamitsu, Sanenaga, and Kagemitsu are known as Osafune Sansaku, the three renowned Osafune swordsmiths. There are also four other prominent swordsmiths who were from Bizen Osafune school. They are called Osafune Shiten-no, the four masters of Osafune school. Their names are Nagamitsu, Kanemitsu, Nagayoshi, and Motoshige.
BIZEN is located near the Chugoku Mountains, where iron sands, one of the essential materials for making Japanese swords, were abundant. Furthermore, BIZEN swordsmiths had close access to Yoshi River, where they could find water and charcoal. This geological location contributed to the swordsmiths forging high-quality refined blades. We presume BIZEN was quite active in sword-forging from ancient times. It is said that BIZEN DEN was created by groups of swordsmiths there during the late Heian era (Late 12th century ). These ancient swordsmiths in Bizen province are called Ko-Bizen (Old Bizen) swordsmiths. By inheriting the sword forging techniques from Ko-Bizen swordsmiths, the Bizen Osafune school flourished from the mid-Kamakura period.
It is appraised as a
Tokubetsu Hozon Token
(特別保存刀剣) issued by NBTHK (Nihon Bijutsu Touken Hozon Kyokai: 日本美術刀剣保存協会). This authentication paper was only given to authentic Japanese swords, especially well preserved and high quality with artistic value.
【Blade】
Cutting Edge Length (Nagasa)
:
43.7
cm (17.2inches)
Curvature (Sori)
:
1.4 cm (0.55 inches)
Hamon
:
The crystalline structure which forms along the cutting edge of a blade as a result of the hardening process.
Jimon(Jihada)
:
visible steel surface pattern created by folding and hammering during forging process
Kissaki
:
Kissaki is the tip of the Japanese sword.
You can see interesting Kissaki (tip of the blade) called
Shobu Zukuri (菖蒲造り)
on this Katana blade. There is no Yokote on this blade. Yokote is the borderline between the tip and cutting edge. We are confident you will appreciate the elegant look of this blade.
Nakago
:
Nakago is the tang of the Japanese sword.
Japanese swordsmiths left the black rust on the tang because it prevents red rust while the tang is in its handle. And the discoloration of the tang was created over time, and it is a great indicator for a Japanese sword specialist to estimate when the sword was forged.
Koshirae
:
Koshirae is the mounting of the Japanese sword. There are several parts that consist of Koshirae such as Saya (