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Description

This is a tachi attributed to the Ko Naminohira school of Satsuma province, dating to the early Kamakura period (circa 1200). The Naminohira school was founded by a swordsmith from Yamato province who settled in the Naminohira area of Taniyama district in Satsuma. It comes with NBTHK Hozon certification.

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Swords›Naminohira›Tachi: Mumei (Ko Naminohira) - NBTHK Hozon
tachiHozon
Naminohira School

Tachi: Mumei (Ko Naminohira) - NBTHK Hozon

mumei · Naminohira · Kamakura · nagasa 82.8cm · sori 3.1cm

¥2,000,000
Visit seller website →
Naminohira School — 1 of 8
Naminohira School — 2 of 8
Naminohira School — 3 of 8
Naminohira School — 4 of 8
Naminohira School — 5 of 8
Naminohira School — 6 of 8
Naminohira School — 7 of 8
Naminohira School — 8 of 8
1 / 8
1 / 8
Naminohira School — 1 of 8Naminohira School — 2 of 8Naminohira School — 3 of 8Naminohira School — 4 of 8Naminohira School — 5 of 8Naminohira School — 6 of 8Naminohira School — 7 of 8Naminohira School — 8 of 8
Measurements & details
Smith
Naminohira School
Type
Tachi
School
Naminohira
Period
Kamakura
Province
Satsuma
Signature
Unsigned(0% of this smith's designated works are signed)
Measurements
Nagasa 82.8cmSori 3.1cmMotohaba 3cmSakihaba 1.72cmKasane 0.75cm
Description

This is a tachi attributed to the Ko Naminohira school of Satsuma province, dating to the early Kamakura period (circa 1200). The Naminohira school was founded by a swordsmith from Yamato province who settled in the Naminohira area of Taniyama district in Satsuma. It comes with NBTHK Hozon certification.

About the school

Naminohira

波平

Wakimono · Satsuma

15 pieces on the market now

›

The Naminohira school traces its origins to the late Heian period, when a swordsmith named Masakuni migrated from Yamato Province and established himself at Naminohira in Taniyama District, Satsuma Province. His son Yukiyasu succeeded him, and the lineage continued unbroken into the late Edo shinshintō era. The collective term Ko-Naminohira designates smiths and works dating no later than the Nanbokuchō period, distinguishing the school's formative generations from later practitioners. Learn more →

21 recorded smiths46 designated works
Leading smiths
SmithEraDesignated
Yukiyasu行安1308-131110
Yasutsugu安次1224-12250
Yasutsugu安次1375-13810
Yasuyoshi安吉1469-14870
Naminohira Yoshiyasu波平義安13951
Explore the Naminohira school →
NBTHK Certificate
Hozon Tōken保存刀剣
Sword Worthy of Preservation
›

Certifies a genuine blade worth preserving: a signature confirmed correct, or, if unsigned, an era, province, and school that the NBTHK can reliably identify.

About the NBTHK›

The NBTHK (Nihon Bijutsu Tōken Hozon Kyōkai, the Society for the Preservation of Japanese Art Swords) is a public-interest incorporated foundation founded in 1948 and supervised by Japan’s Agency for Cultural Affairs (Bunkachō); it is based at the Japanese Sword Museum in Tokyo. Its expert panels physically examine each submitted work (shinsa) and issue a certificate (kanteishō) ranking it by artistic and historical merit. NBTHK papers are the most widely recognized standard of authentication for Japanese swords and fittings.

NBTHK official site→
Seller
T
Toyuukai
🇯🇵Ships from Japan
›
✓Verified dealertoyuukai.jp
Settles in JPY
✓Ships worldwide✓English supportWire transfer
Return policy

Contact within 3 days of receipt; returns not accepted for modified items or when trade-in goods are involved.

View all of Toyuukai’s listings→View this item on the dealer’s site→

Previously sold — Naminohira School

Choshuya
Tanto - by Naminohira School - Unsigned Naminohira (Early Muromachi Period), 1053Tanto - by Naminohira School - Unsigned Naminohira (Early Muromachi Period), 1053
Sold

Tantō

ByNaminohira School
SOLD
Samurai Museum
Hozon
Wakizashi - Hozon - by Naminohira School - Antique Japanese Sword Wakizashi Signed by Naminohira Yukiyasu NBTHK Hozon CertificateWakizashi - Hozon - by Naminohira School - Antique Japanese Sword Wakizashi Signed by Naminohira Yukiyasu NBTHK Hozon Certificate
Sold

Wakizashi

ByNaminohira School
SOLD
Tokyo Sword
Wakizashi - by Naminohira School - NaminohiraWakizashi - by Naminohira School - Naminohira
Sold

Wakizashi

ByNaminohira School
SOLD
Katana Sword
Katana - by Naminohira School - Naminohira SadakuKatana - by Naminohira School - Naminohira Sadaku
Sold

Katana

ByNaminohira School
SOLD
Choshuya
Wakizashi - by Naminohira School - Naminohira Masayuki YasunariWakizashi - by Naminohira School - Naminohira Masayuki Yasunari
Sold

Wakizashi

ByNaminohira School
SOLD
Nihonto Australia
Hozon
Katana - Hozon - by Naminohira School - A Historically Important Naminohira Katana Owned by Oishi Kuwajiro, Member of the ShinsengumiKatana - Hozon - by Naminohira School - A Historically Important Naminohira Katana Owned by Oishi Kuwajiro, Member of the Shinsengumi
Sold

Katana

ByNaminohira School
SOLD
Giheiya
Hozon
Tanto - Hozon - by Naminohira School - Hozon Token: Mumei (Naminohira) - 6 Sun 8 Bu Satsuma Tanto KoshiraeTanto - Hozon - by Naminohira School - Hozon Token: Mumei (Naminohira) - 6 Sun 8 Bu Satsuma Tanto Koshirae
Sold

Tantō

ByNaminohira School
SOLD
Tozando
Tokubetsu Kichō
Katana - Tokubetsu Kichō - by Naminohira School - NaminohiraKatana - Tokubetsu Kichō - by Naminohira School - Naminohira
Sold

Katana

ByNaminohira School
SOLD

More from the Naminohira school

View all →
World Seiyudo
Jūyō
Katana - Jūyō - by Naminohira School - Mumei Ko-Naminohira with NBTHK Juyo Token CertificationKatana - Jūyō - by Naminohira School - Mumei Ko-Naminohira with NBTHK Juyo Token Certification

Katana

ByNaminohira School
¥4,800,000
Toushin
Tokuho
Kodachi - Tokuho - by Naminohira - Kodachi: Ko NaminohiraKodachi - Tokuho - by Naminohira - Kodachi: Ko Naminohira

Kodachi

ByNaminohira
¥1,100,000
E-sword
Hozon
Tanto - Hozon - by Naminohira School - Shigeyuki (attributed to Naminohira)Tanto - Hozon - by Naminohira School - Shigeyuki (attributed to Naminohira)

Tantō

ByNaminohira School
¥280,000
Toushin
Hozon
Tachi - Hozon - by Naminohira - Mumei (Naminohira)Tachi - Hozon - by Naminohira - Mumei (Naminohira)

Tachi

ByNaminohira
¥935,000
Nihontocraft
Tokuho
Katana - Tokuho - by Naminohira School - Naginata-Naoshi Katana: Ko-NaminohiraKatana - Tokuho - by Naminohira School - Naginata-Naoshi Katana: Ko-Naminohira

Katana

ByNaminohira School
¥6,900
Aoi Art
Hozon
Wakizashi - Hozon - by Sue-Naminohira Kiyosuke - Sasshu Ju Kiyosuke (August 1532)Wakizashi - Hozon - by Sue-Naminohira Kiyosuke - Sasshu Ju Kiyosuke (August 1532)

Wakizashi

BySue-Naminohira Kiyosuke
Starting Bid¥450,000
Samurai Museum
Tokuho
Katana - Tokuho - by Sue-Naminohira Yasuhide - Naminohira Yasuhide - Muromachi PeriodKatana - Tokuho - by Sue-Naminohira Yasuhide - Naminohira Yasuhide - Muromachi Period

Katana

BySue-Naminohira Yasuhide
¥7,018
Touken Matsumoto
Tokuho
Wakizashi - Tokuho - by Sue-Naminohira School - YasuokiWakizashi - Tokuho - by Sue-Naminohira School - Yasuoki

Wakizashi

BySue-Naminohira School
¥450,000

Swords

  • Katana
  • Wakizashi
  • Tantō
  • Tachi
  • Naginata
  • Yari

Fittings

  • Tsuba
  • Fuchi-Kashira
  • Kozuka
  • Menuki

By Certification

  • Tokujū
  • Jūyō
  • Tokuho
  • Hozon

Resources

  • Dealer Directory
  • Artist Directory
  • Glossary
  • Browse All
Nihontowatch© 2026
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Description

This is a tachi attributed to the Ko Naminohira school of Satsuma province, dating to the early Kamakura period (circa 1200). The Naminohira school was founded by a swordsmith from Yamato province who settled in the Naminohira area of Taniyama district in Satsuma. It comes with NBTHK Hozon certification.

NihontoWatch MonNihontoWatch
MarketAuctionsEncyclopedia
Swords›Naminohira›Tachi: Mumei (Ko Naminohira) - NBTHK Hozon
tachiHozon
Naminohira School

Tachi: Mumei (Ko Naminohira) - NBTHK Hozon

mumei · Naminohira · Kamakura · nagasa 82.8cm · sori 3.1cm

¥2,000,000
Visit seller website →
Naminohira School — 1 of 8
Naminohira School — 2 of 8
Naminohira School — 3 of 8
Naminohira School — 4 of 8
Naminohira School — 5 of 8
Naminohira School — 6 of 8
Naminohira School — 7 of 8
Naminohira School — 8 of 8
1 / 8
1 / 8
Naminohira School — 1 of 8Naminohira School — 2 of 8Naminohira School — 3 of 8Naminohira School — 4 of 8Naminohira School — 5 of 8Naminohira School — 6 of 8Naminohira School — 7 of 8Naminohira School — 8 of 8
Measurements & details
Smith
Naminohira School
Type
Tachi
School
Naminohira
Period
Kamakura
Province
Satsuma
Signature
Unsigned(0% of this smith's designated works are signed)
Measurements
Nagasa 82.8cmSori 3.1cmMotohaba 3cmSakihaba 1.72cmKasane 0.75cm
Description

This is a tachi attributed to the Ko Naminohira school of Satsuma province, dating to the early Kamakura period (circa 1200). The Naminohira school was founded by a swordsmith from Yamato province who settled in the Naminohira area of Taniyama district in Satsuma. It comes with NBTHK Hozon certification.

About the school

Naminohira

波平

Wakimono · Satsuma

15 pieces on the market now

›

The Naminohira school traces its origins to the late Heian period, when a swordsmith named Masakuni migrated from Yamato Province and established himself at Naminohira in Taniyama District, Satsuma Province. His son Yukiyasu succeeded him, and the lineage continued unbroken into the late Edo shinshintō era. The collective term Ko-Naminohira designates smiths and works dating no later than the Nanbokuchō period, distinguishing the school's formative generations from later practitioners. Learn more →

21 recorded smiths46 designated works
Leading smiths
SmithEraDesignated
Yukiyasu行安1308-131110
Yasutsugu安次1224-12250
Yasutsugu安次1375-13810
Yasuyoshi安吉1469-14870
Naminohira Yoshiyasu波平義安13951
Explore the Naminohira school →
NBTHK Certificate
Hozon Tōken保存刀剣
Sword Worthy of Preservation
›

Certifies a genuine blade worth preserving: a signature confirmed correct, or, if unsigned, an era, province, and school that the NBTHK can reliably identify.

About the NBTHK›

The NBTHK (Nihon Bijutsu Tōken Hozon Kyōkai, the Society for the Preservation of Japanese Art Swords) is a public-interest incorporated foundation founded in 1948 and supervised by Japan’s Agency for Cultural Affairs (Bunkachō); it is based at the Japanese Sword Museum in Tokyo. Its expert panels physically examine each submitted work (shinsa) and issue a certificate (kanteishō) ranking it by artistic and historical merit. NBTHK papers are the most widely recognized standard of authentication for Japanese swords and fittings.

NBTHK official site→
Seller
T
Toyuukai
🇯🇵Ships from Japan
›
✓Verified dealertoyuukai.jp
Settles in JPY
✓Ships worldwide✓English supportWire transfer
Return policy

Contact within 3 days of receipt; returns not accepted for modified items or when trade-in goods are involved.

View all of Toyuukai’s listings→View this item on the dealer’s site→

Previously sold — Naminohira School

Choshuya
Tanto - by Naminohira School - Unsigned Naminohira (Early Muromachi Period), 1053Tanto - by Naminohira School - Unsigned Naminohira (Early Muromachi Period), 1053
Sold

Tantō

ByNaminohira School
SOLD
Samurai Museum
Hozon
Wakizashi - Hozon - by Naminohira School - Antique Japanese Sword Wakizashi Signed by Naminohira Yukiyasu NBTHK Hozon CertificateWakizashi - Hozon - by Naminohira School - Antique Japanese Sword Wakizashi Signed by Naminohira Yukiyasu NBTHK Hozon Certificate
Sold

Wakizashi

ByNaminohira School
SOLD
Tokyo Sword
Wakizashi - by Naminohira School - NaminohiraWakizashi - by Naminohira School - Naminohira
Sold

Wakizashi

ByNaminohira School
SOLD
Katana Sword
Katana - by Naminohira School - Naminohira SadakuKatana - by Naminohira School - Naminohira Sadaku
Sold

Katana

ByNaminohira School
SOLD
Choshuya
Wakizashi - by Naminohira School - Naminohira Masayuki YasunariWakizashi - by Naminohira School - Naminohira Masayuki Yasunari
Sold

Wakizashi

ByNaminohira School
SOLD
Nihonto Australia
Hozon
Katana - Hozon - by Naminohira School - A Historically Important Naminohira Katana Owned by Oishi Kuwajiro, Member of the ShinsengumiKatana - Hozon - by Naminohira School - A Historically Important Naminohira Katana Owned by Oishi Kuwajiro, Member of the Shinsengumi
Sold

Katana

ByNaminohira School
SOLD
Giheiya
Hozon
Tanto - Hozon - by Naminohira School - Hozon Token: Mumei (Naminohira) - 6 Sun 8 Bu Satsuma Tanto KoshiraeTanto - Hozon - by Naminohira School - Hozon Token: Mumei (Naminohira) - 6 Sun 8 Bu Satsuma Tanto Koshirae
Sold

Tantō

ByNaminohira School
SOLD
Tozando
Tokubetsu Kichō
Katana - Tokubetsu Kichō - by Naminohira School - NaminohiraKatana - Tokubetsu Kichō - by Naminohira School - Naminohira
Sold

Katana

ByNaminohira School
SOLD

More from the Naminohira school

View all →
World Seiyudo
Jūyō
Katana - Jūyō - by Naminohira School - Mumei Ko-Naminohira with NBTHK Juyo Token CertificationKatana - Jūyō - by Naminohira School - Mumei Ko-Naminohira with NBTHK Juyo Token Certification

Katana

ByNaminohira School
¥4,800,000
Toushin
Tokuho
Kodachi - Tokuho - by Naminohira - Kodachi: Ko NaminohiraKodachi - Tokuho - by Naminohira - Kodachi: Ko Naminohira

Kodachi

ByNaminohira
¥1,100,000
E-sword
Hozon
Tanto - Hozon - by Naminohira School - Shigeyuki (attributed to Naminohira)Tanto - Hozon - by Naminohira School - Shigeyuki (attributed to Naminohira)

Tantō

ByNaminohira School
¥280,000
Toushin
Hozon
Tachi - Hozon - by Naminohira - Mumei (Naminohira)Tachi - Hozon - by Naminohira - Mumei (Naminohira)

Tachi

ByNaminohira
¥935,000
Nihontocraft
Tokuho
Katana - Tokuho - by Naminohira School - Naginata-Naoshi Katana: Ko-NaminohiraKatana - Tokuho - by Naminohira School - Naginata-Naoshi Katana: Ko-Naminohira

Katana

ByNaminohira School
¥6,900
Aoi Art
Hozon
Wakizashi - Hozon - by Sue-Naminohira Kiyosuke - Sasshu Ju Kiyosuke (August 1532)Wakizashi - Hozon - by Sue-Naminohira Kiyosuke - Sasshu Ju Kiyosuke (August 1532)

Wakizashi

BySue-Naminohira Kiyosuke
Starting Bid¥450,000
Samurai Museum
Tokuho
Katana - Tokuho - by Sue-Naminohira Yasuhide - Naminohira Yasuhide - Muromachi PeriodKatana - Tokuho - by Sue-Naminohira Yasuhide - Naminohira Yasuhide - Muromachi Period

Katana

BySue-Naminohira Yasuhide
¥7,018
Touken Matsumoto
Tokuho
Wakizashi - Tokuho - by Sue-Naminohira School - YasuokiWakizashi - Tokuho - by Sue-Naminohira School - Yasuoki

Wakizashi

BySue-Naminohira School
¥450,000

Swords

  • Katana
  • Wakizashi
  • Tantō
  • Tachi
  • Naginata
  • Yari

Fittings

  • Tsuba
  • Fuchi-Kashira
  • Kozuka
  • Menuki

By Certification

  • Tokujū
  • Jūyō
  • Tokuho
  • Hozon

Resources

  • Dealer Directory
  • Artist Directory
  • Glossary
  • Browse All
Nihontowatch© 2026
TermsPrivacyCookiesAbout
NihontoWatch Mon

NihontoWatch

MarketAuctions
Encyclopedia
NihontoWatch Mon

NihontoWatch

MarketAuctions
Encyclopedia