鎌倉時代 鵜飼派 極め 日本刀 分譲中

附属品

NBTHK Tokubetsu Hozon Certificate, Shirasaya Case, Koshirae Mounting, Traditional Sword Carrying Case, Sword Maintenance Kit, Full Exportation Support

Category

Katana (KOTO)

Age

Late Kamakura to the Nanbokuchō period (1299-1393)

Location

Bizen province (Today’s Okayama prefecture)

登録証

Tokyo 160732

販売店の記載のまま

This blade is attributed to the Ukai school (宇甘派). The Ukai school was a group of swordsmiths active in Bizen province (today’s Okayama Prefecture) from the late Kamakura to the Nanbokuchō period. The school is also known as Unrui (雲類). The name Ukai comes from Ukai village in Bizen province, where the smiths lived. Among the most notable swordsmiths of this school were Unji (雲次) and his son Unju (雲重). It was a relatively small school that was active for just over one hundred years, from the late Kamakura to the Nanbokuchō period. However, more than ten of its blades have been designated as Important Cultural Properties in Japan. The origin of Unrui school The founder of Unrui school was Unsho (雲生). According to a legendary story, Unsho was ordered to forge a Tachi blade for the emperor Godaigo (後醍醐天皇), one of the most famous emperors in Japanese history. And, Unsho was having difficulty forging a blade that satisfied him. However, one night he dreamed about floating clouds. And he got an idea from these clouds in his dream to make Hamon, and he successfully created the blade for the emperor. He devoted this Tachi blade to the emperor Godaigo, and the emperor was impressed by the level of Unsho’s craftsmanship, saying, “The activity of Hamon looks like real clouds.” And the emperor Godaigo ordered Unsho to use the letter 雲(Un or Kumo: Clouds in Japanese). Since then, the school was named Unrui (雲類). All the members of the Unrui school used Un(雲) in their maker’s names. Unsho was active during Kengen era (1302-: Late Kamakura period). And the father of Unjyu, Unji, was the son of Unsho. Unrui school is also known as Ukai (宇甘) because they lived in the village in Bizen province. It is said that the works of Unrui school resemble that of Rai school in Yamashiro province, Aoe school in Bitchu province, or Yamato Den, depending on the blades. One theory says that the members of Unrui school moved from Yamashiro (Today’s Kyoto) to Bizen province during the late Kamakura period. Compared to other swordsmiths living in Bizen province, Unrui school was influenced by Yamashiro DEN (One of the five traditions of the Japanese sword-forging). Tachi Koshirae This blade is stored in Tachi(太刀) Koshirae. Tachi was mainly used by an armored Samurai with one hand on horseback from the Heian period (794-1185 A.D.) until the early Muromachi period. TACHI was suspended loosely on the left waist with its edge facing the ground so that you could draw it faster to cut down soldiers on the ground. Because of its gorgeous looking, having a Tachi-style sword mounting became a social status among Samurai. 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). *Please keep in mind that there are a couple of Kitae Kizu on the blade. Fuchi-Kashira The Kabutogane (冑金/兜金) is a metal fitting that is attached to the end of a handle. And a Sarute/Sarude (猿手) is attached to this Kabutogane. The user of a sword passed the Udenukio (腕貫緒, a cord wrapped around the wrist to prevent a sword from falling out of the hand, mainly used when riding a horse) through this ring. In addition, the Fuchi Kanamono (縁金物) is also a metal fitting attached to the handle, but on the opposite side of Kabutogane. Other metal fittings of this Koshirae have the same design such as Kuchi Kanamono (口金物, a metal fitting that is attached to the tip of the scabbard close to Tsuba), Seme Kanamono (責金物, a ring-shaped metal fitting placed in the middle of the scabbard to prevent the sheath from cracking), Ashi Kanamono (足金物, metal fittings attached to the positions where Sageo cord is wrapped), and Ishiduki Kanamono (石突金物, a metal fitting that is attached to the end of the scabbard). Tsuka and Menuki Dragon (龍, Ryu) is the motif of this Menuki. Initially, the dragon is an imaginary creature found in ancient Chinese traditions or myths. Furthermore, it is regarded as a symbolic beast of auspicious signs. Its body is likened to nine animals: antlers are deer, the head is a camel, eyes are demons, the neck is a snake, belly is Mizuchi (蛟, mythical animal in Japan which looks like a snake and have a horn and four legs), scales are fish, claws are falcons, palms are tigers, and ears are cows. It was thought that the dragon would reign at the top of all animals because of its odd-looking appearance. In ancient China, the dragon pattern was used for emperors’ clothing so that people strictly defined its shape or even the number of nails. On the other hand, the dragon pattern does not have detailed rules to represent classes in Japan. However, still, it maintains its meaning as the all-purpose auspicious pattern. Also, in Japan, there is a belief that worships dragon as a water god and is called Ryujin Shinkou (竜神信仰). Since rice cultivation flourished in this country, water is always an essential resource. Therefore, the dragon motif has been familiar to Japanese people since a long time ago. Tsuba and Habaki This Tsuba has a Tachi Goshirae Tsuba (太刀拵鐔) style. The difference between Tachi Tsuba (太刀鐔) and Katana Tsuba (刀鐔) is that the top and bottom positions of the Nakago hole (茎櫃, center hole) are reversed. The Tsuba of this Koshirae has Aoi (葵) Tsuba shape. If you focus on four corners, you will find a heart mark-shaped hole is engraved on each edge. It is called the Inome (猪の目) pattern. The Inome pattern has been used since ancient times. As its name implies, the boar’s eyes are the origin of this pattern. Some people believed the Inome design would work as an amulet to protect them from evil spirits or fire. Also, it is said it would bring good luck. Saya This Saya has a family crest called Gosan-no-Kiri (五三の桐). The Kiri (桐, paulownia) pattern is generally composed of three standing straight inflorescences and three leaves. The number of flowers that are blooming at each inflorescence means the ranks of this design. It is also famous that one of the most popular Samurais in Japan: Toyotomi Hideyoshi used the Kiri pattern for his family crest. According to a theory, Hideyoshi used Omodaka (沢瀉, arrowhead) pattern as his family crest. However, Oda Nobunaga, a well-known military commander in the Warring States period, permitted Hideyoshi to use Kiri design. This plant pattern was once used by the imperial family and national leaders of the time. Today, this plant pattern is used as the crest of the Japanese Government. Gosan-no-Kiri Monyou (五三の桐文様) is a popular design that the paulownia motif is used. This pattern was once used by the imperial family and people in authority at that time. Today, it is permitted to use by ordinary households and is appreciated as their family crests. According to a tradition, Houou (鳳凰, Fenghuang, a kind of sacred beast) rests its wings at the paulownia tree; therefore, it has come to be regarded as a holy plant. Authentication Paper They authenticated the blade on February 21st in the 7th year of Reiwa (2025). They appraised it as Tokubetsu Hozon Touken, the blade especially worth preserving for Japanese society.