
Antique Japanese Sword Katana Signed by Nobukuni Yoshimasa NBTHK Hozon Certificate
売却済
世界81社の刀剣商を横断追跡 · 価格履歴 · 売却アーカイブ
仕様
61.4 cm
1.8 cm
Antique Japanese Sword Katana Nobukuni Yoshimasa with Hozon Certificate 【Description】 Summary This blade was signed by Chikushu Jyu Minamoto Nobukuni Yoshimasa (筑州住源信国吉政). Chikushu, also known as Chikuzen, is the province’s name located in Fukuoka prefecture today. Jyu means living. Minamoto Nobukuni is the name of his school, and Yoshimasa is his maker’s name. Those who belonged to Nobukuni School in Chikuzen province were called Tsukushi Nobukuni, one of the most prospered sword forging schools in Kyushu island during the Edo period. The maker’s name Yoshimasa lasted three generations, and we believe it was signed by the second generation. The second-gen Yoshimasa is also known as Nobukuni Heishiro (信国平四郎). He was born as the second son of Nobukuni Yoshisada (信国吉貞) in the fifth year of the Gen-Na era (1618). Yoshisada was the founder of Tsukushi Nobukuni school, and his older brother was the first-gen Yoshimasa. The second-gen Yoshimasa was especially active during the Kanbun-Enpo era ( 1661-1681 : Early Edo Period). There is also a record of him forging a sword in the second year of the Jyokyo era (1685). The Fondation of Nobukuni School The Nobukuni school was initially founded by the first generation Nobukuni in Kyoto. The school stayed there for a few generations. However, the 4th generation Nobukuni SADAMITSU had to evacuate Kyoto city because the battle between the south emperor court and the north emperor court became severe. And as a result, Kyoto city was burnt(in the late 1300s). We called it the Nanbokucho war when the Japanese imperial court was separated into two. Nobukuni SADAMITSU managed to escape and arrive at Usaha(Ohita prefecture)to serve the Ajimu clan. Nobukuni school prospered there from third to 11th generation. However, Toyotomi Hideyoshi, one of the three unifiers of Japan, destroyed the Ajimu clan during the late Azuchi Momoyama period (1582). And the 12th generation Nobukuni YOSHISADA moved to Chikuzen(Fukuoka prefecture), being invited by Kuroda Nagamasa, a famous feudal lord who served Toyotomi Hideyoshi (1602). It is said that the second-gen Yoshimasa also followed his father. Since then, Nobukuni school had been under the auspices of Kuroda clan for generations during the Edo period, and they exclusively forged for this clan. This blade is appraised as a Hozon Token(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, well preserved with artistic value. 【 Blade】 Cutting Edge Length(Nagasa) : 61.4 cm( 24.2 inches) Curvature(Sori) : 1.8 cm( 0.70 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 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(Scabbard), Tsuka(Handle), Tsuba(Handguard). Fuchi-Kashira : A pair of matching sword fittings that cover the upper and bottom parts of its sword hilt. If you focus on the Fuchi part, you will find that a straight line that looks similar to the Matsukawabishi (松皮菱/松川菱) pattern is engraved. The inside of this line pattern was finished with the Nanako-Ji (魚子地) technique. By hitting with the Nanako-Ji Tagane (魚子地鏨, chisel for this technique), delicate fish egg-shaped protrusions were made on the surface. It creates an ornamental look for the work. And also, we guess it had practicality as a non-slip part. In this Fuchi Kashira, it seems this technique was used to add decorativeness to the work. A kind of plant design

売却済
世界81社の刀剣商を横断追跡 · 価格履歴 · 売却アーカイブ
61.4 cm
1.8 cm

Mid Edo Katana signed by Tanba no Kami Yoshimichi for sale| Samurai Museum Shop E-mail FB Messenger Skip to content Menu Close Samurai Museum Shop Products Antique Japanese Sword Katana signed by Tanba no Kami Yoshimichi NTHK Kanteisho Certificate Updated: 22 Jun 2026 Antique Japanese Sword Katana signed by Tanba no Kami Yoshimichi NTHK Kanteisho Certificate
$7,441

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Antique Japanese Sword Katana Nobukuni Yoshimasa with Hozon Certificate 【Description】 Summary This blade was signed by Chikushu Jyu Minamoto Nobukuni Yoshimasa (筑州住源信国吉政). Chikushu, also known as Chikuzen, is the province’s name located in Fukuoka prefecture today. Jyu means living. Minamoto Nobukuni is the name of his school, and Yoshimasa is his maker’s name. Those who belonged to Nobukuni School in Chikuzen province were called Tsukushi Nobukuni, one of the most prospered sword forging schools in Kyushu island during the Edo period. The maker’s name Yoshimasa lasted three generations, and we believe it was signed by the second generation. The second-gen Yoshimasa is also known as Nobukuni Heishiro (信国平四郎). He was born as the second son of Nobukuni Yoshisada (信国吉貞) in the fifth year of the Gen-Na era (1618). Yoshisada was the founder of Tsukushi Nobukuni school, and his older brother was the first-gen Yoshimasa. The second-gen Yoshimasa was especially active during the Kanbun-Enpo era ( 1661-1681 : Early Edo Period). There is also a record of him forging a sword in the second year of the Jyokyo era (1685). The Fondation of Nobukuni School The Nobukuni school was initially founded by the first generation Nobukuni in Kyoto. The school stayed there for a few generations. However, the 4th generation Nobukuni SADAMITSU had to evacuate Kyoto city because the battle between the south emperor court and the north emperor court became severe. And as a result, Kyoto city was burnt(in the late 1300s). We called it the Nanbokucho war when the Japanese imperial court was separated into two. Nobukuni SADAMITSU managed to escape and arrive at Usaha(Ohita prefecture)to serve the Ajimu clan. Nobukuni school prospered there from third to 11th generation. However, Toyotomi Hideyoshi, one of the three unifiers of Japan, destroyed the Ajimu clan during the late Azuchi Momoyama period (1582). And the 12th generation Nobukuni YOSHISADA moved to Chikuzen(Fukuoka prefecture), being invited by Kuroda Nagamasa, a famous feudal lord who served Toyotomi Hideyoshi (1602). It is said that the second-gen Yoshimasa also followed his father. Since then, Nobukuni school had been under the auspices of Kuroda clan for generations during the Edo period, and they exclusively forged for this clan. This blade is appraised as a Hozon Token(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, well preserved with artistic value. 【 Blade】 Cutting Edge Length(Nagasa) : 61.4 cm( 24.2 inches) Curvature(Sori) : 1.8 cm( 0.70 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 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(Scabbard), Tsuka(Handle), Tsuba(Handguard). Fuchi-Kashira : A pair of matching sword fittings that cover the upper and bottom parts of its sword hilt. If you focus on the Fuchi part, you will find that a straight line that looks similar to the Matsukawabishi (松皮菱/松川菱) pattern is engraved. The inside of this line pattern was finished with the Nanako-Ji (魚子地) technique. By hitting with the Nanako-Ji Tagane (魚子地鏨, chisel for this technique), delicate fish egg-shaped protrusions were made on the surface. It creates an ornamental look for the work. And also, we guess it had practicality as a non-slip part. In this Fuchi Kashira, it seems this technique was used to add decorativeness to the work. A kind of plant design

売却済
世界81社の刀剣商を横断追跡 · 価格履歴 · 売却アーカイブ
61.4 cm
1.8 cm

Mid Edo Katana signed by Tanba no Kami Yoshimichi for sale| Samurai Museum Shop E-mail FB Messenger Skip to content Menu Close Samurai Museum Shop Products Antique Japanese Sword Katana signed by Tanba no Kami Yoshimichi NTHK Kanteisho Certificate Updated: 22 Jun 2026 Antique Japanese Sword Katana signed by Tanba no Kami Yoshimichi NTHK Kanteisho Certificate
$7,441

Muromachi Katana signed by Naminohira Yasuhide for sale
$7,751

Early Edo Nihonto signed by Shigetaka for sale
$7,131

Antique Japanese Sword Katana Signed by Masahiro NBTHK Tokubetsu Hozon Certificate
$7,751