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Description

This is a tachi made by Gassan Sadakazu in 1901 for Mizusawa Masao. It features a reverse choji-midare hamon, likely aiming for the Bizen-den Katayama Ichimonji style. The blade comes with a koshirae and is certified as Hozon Token by the NBTHK.

NihontoWatch MonNihontoWatch
MarketEncyclopediaKantei
Swords›Sadakazu›Shinto Tachi: Gassan Sadakazu, Made in Meiji 34 (1901) for Mizusawa Masao, with NBTHK Hozon Token Certificate
tachiHozon
Gassan Sadakazu

Shinto Tachi: Gassan Sadakazu, Made in Meiji 34 (1901) for Mizusawa Masao, with NBTHK Hozon Token Certificate

mei · Gassan · Meiji · nagasa 67.2cm · sori 1.5cm

SOLD
Gassan Sadakazu (貞一) · Gassan · Meiji5 works for sale · median ask ¥1,000,000 →
TachiHozon
Could you name the smith from the blade alone? Today’s kantei →
Gassan Sadakazu — 1 of 6
Gassan Sadakazu — 2 of 6
Gassan Sadakazu — 3 of 6
Gassan Sadakazu — 4 of 6
Gassan Sadakazu — 5 of 6
Gassan Sadakazu — 6 of 6
1 / 6
1 / 6
Gassan Sadakazu — 1 of 6Gassan Sadakazu — 2 of 6Gassan Sadakazu — 3 of 6Gassan Sadakazu — 4 of 6Gassan Sadakazu — 5 of 6Gassan Sadakazu — 6 of 6
Gassan Sadakazu (貞一) · Gassan · Meiji5 works for sale · median ask ¥1,000,000 →
TachiHozon
Could you name the smith from the blade alone? Today’s kantei →
Measurements & details
Smith
Gassan Sadakazu
Type
Tachi
Period
Around 1907–1995(Showa)
Province
Settsu
Signature
Signed
Measurements
Nagasa 67.2cmSori 1.5cmMotohaba 2.7cmSakihaba 1.9cmKasane 0.6cm
Description

This is a tachi made by Gassan Sadakazu in 1901 for Mizusawa Masao. It features a reverse choji-midare hamon, likely aiming for the Bizen-den Katayama Ichimonji style. The blade comes with a koshirae and is certified as Hozon Token by the NBTHK.

About the maker

Sadakazu

貞一

Yamato · around 1907-1995

Tōken Taikan top 49%

5 pieces on the market now

›
5 works by Sadakazu on the market→
Sadakazu — full profile

Study this maker →

Historical context

Meiji: survival after the edict

›

The Haitōrei edict of 1876 ended sword wearing and nearly ended the craft itself. Military demand and imperial patronage kept a remnant alive, and in 1906 Gassan Sadakazu and Miyamoto Kanenori were named Artists to the Imperial Household.

Meiji: survival after the edict →

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
I
Iida Koendo
Established 1880 · 146 yrs on the market
🇯🇵Ships from Japan
›
✓Verified dealeriidakoendo.com
✓Ships worldwide✓English supportWire transfer
Return policy

Customer-initiated returns accepted within two days of arrival; return shipping paid by customer and fees non-refundable. Returns/refunds unavailable for overseas deliveries.

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

More works by Gassan Sadakazu

View all →
Aoi Art
Tokuho
Tanto - Tokuho - by Gassan Sadakazu - Imperial Artist Gassan Sadakazu (Spring, 1914)Tanto - Tokuho - by Gassan Sadakazu - Imperial Artist Gassan Sadakazu (Spring, 1914)

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Starting Bid¥850,000
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Katana - Tokuho - by Gassan Sadakazu - Osaka Gassan Sadakazu Saku (stamped) Meiji 30 Nen 8 Gatsu Hi Motte Soushu Kamakura Masamune DenKatana - Tokuho - by Gassan Sadakazu - Osaka Gassan Sadakazu Saku (stamped) Meiji 30 Nen 8 Gatsu Hi Motte Soushu Kamakura Masamune Den

Katana

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¥2,500,000
Shoubudou
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Tanto - Hozon - by Gassan Sadakazu - Imperial Household Artist Gassan Sadakazu, Winter 1908Tanto - Hozon - by Gassan Sadakazu - Imperial Household Artist Gassan Sadakazu, Winter 1908

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ByGassan Sadakazu
¥1,000,000
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Tanto - Hozon - by Gassan Sadakazu - Gassan Sadakazu (Kao) Meiji 5 (1872)Tanto - Hozon - by Gassan Sadakazu - Gassan Sadakazu (Kao) Meiji 5 (1872)

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ByGassan Sadakazu
¥800,000
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Tanto - Tokuho - by Gassan Sadakazu - Tanto by Gassan Sadaichi of Washu Miwayama, Living National Treasure, Showa 44 (1969)Tanto - Tokuho - by Gassan Sadakazu - Tanto by Gassan Sadaichi of Washu Miwayama, Living National Treasure, Showa 44 (1969)

Tantō

ByGassan Sadakazu
Ask

Previously sold by Gassan Sadakazu

View all →
Choshuya
Tokuho
Wakizashi - Tokuho - by Gassan Sadakazu - Hira-zukuri Wakizashi: Gassan Minamoto no Sadakazu with Carving (Kao)Wakizashi - Tokuho - by Gassan Sadakazu - Hira-zukuri Wakizashi: Gassan Minamoto no Sadakazu with Carving (Kao)
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Wakizashi

ByGassan Sadakazu
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Giheiya
Tokuho
Tanto - Tokuho - by Gassan Sadakazu - Tokubetsu Hozon Token: Living National Treasure Gassan Sadaichi, carving and work, Yamato Miwayama Saiigawa, Tanto with Aikuchi KoshiraeTanto - Tokuho - by Gassan Sadakazu - Tokubetsu Hozon Token: Living National Treasure Gassan Sadaichi, carving and work, Yamato Miwayama Saiigawa, Tanto with Aikuchi Koshirae
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Tantō

ByGassan Sadakazu
SOLD
Choshuya
Gendaitō
Tanto - by Gassan Sadakazu - Gassan Minamoto Sadakazu with Kao, Auspicious Day in August, Showa 54Tanto - by Gassan Sadakazu - Gassan Minamoto Sadakazu with Kao, Auspicious Day in August, Showa 54
Sold

Tantō

ByGassan Sadakazu
SOLD
Aoi Art
Tokuho
Tanto - Tokuho - by Gassan Sadakazu - Gassan SadakazuTanto - Tokuho - by Gassan Sadakazu - Gassan Sadakazu
Sold

Tantō

ByGassan Sadakazu
SOLD
Choshuya
Gendaitō
Tanto - by Gassan Sadakazu - Gassan Minamoto Sadakazu with carving (Kao) - Showa 50th year, auspicious day of the 9th monthTanto - by Gassan Sadakazu - Gassan Minamoto Sadakazu with carving (Kao) - Showa 50th year, auspicious day of the 9th month
Sold

Tantō

ByGassan Sadakazu
SOLD
Choshuya
Gendaitō
Katana - by Gassan Sadakazu - Gassan SadakazuKatana - by Gassan Sadakazu - Gassan Sadakazu
Sold

Katana

ByGassan Sadakazu
SOLD
Eirakudo
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Tanto - Hozon - by Gassan Sadakazu - Gassan Sadakazu Tanto Hozon TokenTanto - Hozon - by Gassan Sadakazu - Gassan Sadakazu Tanto Hozon Token
Sold

Tantō

ByGassan Sadakazu
SOLD
Unique Japan
Gendaitō
Wakizashi - by Gassan Sadakazu - A Gassan Sadakazu WakizashiWakizashi - by Gassan Sadakazu - A Gassan Sadakazu Wakizashi
Sold

Wakizashi

ByGassan Sadakazu
SOLD

More from the Gassan school

Aoi Art
Tokuho
Katana - Tokuho - by Gassan Sadakatsu - Gassan SadakatsuKatana - Tokuho - by Gassan Sadakatsu - Gassan Sadakatsu

Katana

ByGassan Sadakatsu
¥1,800,000
Aoi Art
Tokuho
Katana - Tokuho - by Gassan Sadakatsu - Naniwa Gassan Unryushi Minamoto Sadakazu - NBTHK Tokubetsu Hozon TokenKatana - Tokuho - by Gassan Sadakatsu - Naniwa Gassan Unryushi Minamoto Sadakazu - NBTHK Tokubetsu Hozon Token

Katana

ByGassan Sadakatsu
Starting Bid¥1,650,000
Choshuya
Tokuho
Katana - Tokuho - by Gassan Sadakazu - Signed Naniwa ju Gassan Unryushi Sadakazu tsukuru [Seal] Keio gannen 11 gatsujitsuKatana - Tokuho - by Gassan Sadakazu - Signed Naniwa ju Gassan Unryushi Sadakazu tsukuru [Seal] Keio gannen 11 gatsujitsu

Katana

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¥2,500,000
Samurai Shokai
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Katana - Hozon - by Gassan - Kinpun Mei GassanKatana - Hozon - by Gassan - Kinpun Mei Gassan

Katana

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¥980,000
Choshuya
Tokuho
Tanto - Tokuho - by Gassan Sadakatsu - Signed Nihon Satetsu Seirenko wo Motte Osaka ju Gassan Sadakatsu (Kao)Tanto - Tokuho - by Gassan Sadakatsu - Signed Nihon Satetsu Seirenko wo Motte Osaka ju Gassan Sadakatsu (Kao)

Tantō

ByGassan Sadakatsu
¥600,000
World Seiyudo
Hozon
Tanto - Hozon - by Gassan Sadakatsu - Gassan Sadakatsu (with Kao) - NBTHK Hozon TokenTanto - Hozon - by Gassan Sadakatsu - Gassan Sadakatsu (with Kao) - NBTHK Hozon Token

Tantō

ByGassan Sadakatsu
¥2,800,000
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Katana - Hozon - by Gassan School - Mumei (Gassan) with NBTHK Hozon CertificateKatana - Hozon - by Gassan School - Mumei (Gassan) with NBTHK Hozon Certificate

Katana

ByGassan School
¥2,500,000
Toushin
Tokuho
Tachi - Tokuho - by Gassan Sadakatsu - Osaka ju Gassan Sadakatsu - Showa 11th year, December, Auspicious DayTachi - Tokuho - by Gassan Sadakatsu - Osaka ju Gassan Sadakatsu - Showa 11th year, December, Auspicious Day

Tachi

ByGassan Sadakatsu
¥2,420,000

Swords

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  • Tantō
  • Tachi
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  • Japanese Swords
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Fittings

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  • Fuchi-Kashira
  • Kozuka
  • Menuki
  • Sword Guards (Tsuba)

Armor

  • Kabuto
  • Samurai Armor
  • All Samurai Armor

By Certification

  • Tokujū
  • Jūyō
  • Tokuho
  • Hozon

Resources

  • Dealer Directory
  • Artist Directory
  • The Daily Kantei
  • Glossary
  • Browse All
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Description

This is a tachi made by Gassan Sadakazu in 1901 for Mizusawa Masao. It features a reverse choji-midare hamon, likely aiming for the Bizen-den Katayama Ichimonji style. The blade comes with a koshirae and is certified as Hozon Token by the NBTHK.

NihontoWatch MonNihontoWatch
MarketEncyclopediaKantei
Swords›Sadakazu›Shinto Tachi: Gassan Sadakazu, Made in Meiji 34 (1901) for Mizusawa Masao, with NBTHK Hozon Token Certificate
tachiHozon
Gassan Sadakazu

Shinto Tachi: Gassan Sadakazu, Made in Meiji 34 (1901) for Mizusawa Masao, with NBTHK Hozon Token Certificate

mei · Gassan · Meiji · nagasa 67.2cm · sori 1.5cm

SOLD
Gassan Sadakazu (貞一) · Gassan · Meiji5 works for sale · median ask ¥1,000,000 →
TachiHozon
Could you name the smith from the blade alone? Today’s kantei →
Gassan Sadakazu — 1 of 6
Gassan Sadakazu — 2 of 6
Gassan Sadakazu — 3 of 6
Gassan Sadakazu — 4 of 6
Gassan Sadakazu — 5 of 6
Gassan Sadakazu — 6 of 6
1 / 6
1 / 6
Gassan Sadakazu — 1 of 6Gassan Sadakazu — 2 of 6Gassan Sadakazu — 3 of 6Gassan Sadakazu — 4 of 6Gassan Sadakazu — 5 of 6Gassan Sadakazu — 6 of 6
Gassan Sadakazu (貞一) · Gassan · Meiji5 works for sale · median ask ¥1,000,000 →
TachiHozon
Could you name the smith from the blade alone? Today’s kantei →
Measurements & details
Smith
Gassan Sadakazu
Type
Tachi
Period
Around 1907–1995(Showa)
Province
Settsu
Signature
Signed
Measurements
Nagasa 67.2cmSori 1.5cmMotohaba 2.7cmSakihaba 1.9cmKasane 0.6cm
Description

This is a tachi made by Gassan Sadakazu in 1901 for Mizusawa Masao. It features a reverse choji-midare hamon, likely aiming for the Bizen-den Katayama Ichimonji style. The blade comes with a koshirae and is certified as Hozon Token by the NBTHK.

About the maker

Sadakazu

貞一

Yamato · around 1907-1995

Tōken Taikan top 49%

5 pieces on the market now

›
5 works by Sadakazu on the market→
Sadakazu — full profile

Study this maker →

Historical context

Meiji: survival after the edict

›

The Haitōrei edict of 1876 ended sword wearing and nearly ended the craft itself. Military demand and imperial patronage kept a remnant alive, and in 1906 Gassan Sadakazu and Miyamoto Kanenori were named Artists to the Imperial Household.

Meiji: survival after the edict →

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
I
Iida Koendo
Established 1880 · 146 yrs on the market
🇯🇵Ships from Japan
›
✓Verified dealeriidakoendo.com
✓Ships worldwide✓English supportWire transfer
Return policy

Customer-initiated returns accepted within two days of arrival; return shipping paid by customer and fees non-refundable. Returns/refunds unavailable for overseas deliveries.

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

More works by Gassan Sadakazu

View all →
Aoi Art
Tokuho
Tanto - Tokuho - by Gassan Sadakazu - Imperial Artist Gassan Sadakazu (Spring, 1914)Tanto - Tokuho - by Gassan Sadakazu - Imperial Artist Gassan Sadakazu (Spring, 1914)

Tantō

ByGassan Sadakazu
Starting Bid¥850,000
Aoi Art
Tokuho
Katana - Tokuho - by Gassan Sadakazu - Osaka Gassan Sadakazu Saku (stamped) Meiji 30 Nen 8 Gatsu Hi Motte Soushu Kamakura Masamune DenKatana - Tokuho - by Gassan Sadakazu - Osaka Gassan Sadakazu Saku (stamped) Meiji 30 Nen 8 Gatsu Hi Motte Soushu Kamakura Masamune Den

Katana

ByGassan Sadakazu
¥2,500,000
Shoubudou
Hozon
Tanto - Hozon - by Gassan Sadakazu - Imperial Household Artist Gassan Sadakazu, Winter 1908Tanto - Hozon - by Gassan Sadakazu - Imperial Household Artist Gassan Sadakazu, Winter 1908

Tantō

ByGassan Sadakazu
¥1,000,000
Aoi Art
Hozon
Tanto - Hozon - by Gassan Sadakazu - Gassan Sadakazu (Kao) Meiji 5 (1872)Tanto - Hozon - by Gassan Sadakazu - Gassan Sadakazu (Kao) Meiji 5 (1872)

Tantō

ByGassan Sadakazu
¥800,000
Nipponto
Tokuho
Tanto - Tokuho - by Gassan Sadakazu - Tanto by Gassan Sadaichi of Washu Miwayama, Living National Treasure, Showa 44 (1969)Tanto - Tokuho - by Gassan Sadakazu - Tanto by Gassan Sadaichi of Washu Miwayama, Living National Treasure, Showa 44 (1969)

Tantō

ByGassan Sadakazu
Ask

Previously sold by Gassan Sadakazu

View all →
Choshuya
Tokuho
Wakizashi - Tokuho - by Gassan Sadakazu - Hira-zukuri Wakizashi: Gassan Minamoto no Sadakazu with Carving (Kao)Wakizashi - Tokuho - by Gassan Sadakazu - Hira-zukuri Wakizashi: Gassan Minamoto no Sadakazu with Carving (Kao)
Sold

Wakizashi

ByGassan Sadakazu
SOLD
Giheiya
Tokuho
Tanto - Tokuho - by Gassan Sadakazu - Tokubetsu Hozon Token: Living National Treasure Gassan Sadaichi, carving and work, Yamato Miwayama Saiigawa, Tanto with Aikuchi KoshiraeTanto - Tokuho - by Gassan Sadakazu - Tokubetsu Hozon Token: Living National Treasure Gassan Sadaichi, carving and work, Yamato Miwayama Saiigawa, Tanto with Aikuchi Koshirae
Sold

Tantō

ByGassan Sadakazu
SOLD
Choshuya
Gendaitō
Tanto - by Gassan Sadakazu - Gassan Minamoto Sadakazu with Kao, Auspicious Day in August, Showa 54Tanto - by Gassan Sadakazu - Gassan Minamoto Sadakazu with Kao, Auspicious Day in August, Showa 54
Sold

Tantō

ByGassan Sadakazu
SOLD
Aoi Art
Tokuho
Tanto - Tokuho - by Gassan Sadakazu - Gassan SadakazuTanto - Tokuho - by Gassan Sadakazu - Gassan Sadakazu
Sold

Tantō

ByGassan Sadakazu
SOLD
Choshuya
Gendaitō
Tanto - by Gassan Sadakazu - Gassan Minamoto Sadakazu with carving (Kao) - Showa 50th year, auspicious day of the 9th monthTanto - by Gassan Sadakazu - Gassan Minamoto Sadakazu with carving (Kao) - Showa 50th year, auspicious day of the 9th month
Sold

Tantō

ByGassan Sadakazu
SOLD
Choshuya
Gendaitō
Katana - by Gassan Sadakazu - Gassan SadakazuKatana - by Gassan Sadakazu - Gassan Sadakazu
Sold

Katana

ByGassan Sadakazu
SOLD
Eirakudo
Hozon
Tanto - Hozon - by Gassan Sadakazu - Gassan Sadakazu Tanto Hozon TokenTanto - Hozon - by Gassan Sadakazu - Gassan Sadakazu Tanto Hozon Token
Sold

Tantō

ByGassan Sadakazu
SOLD
Unique Japan
Gendaitō
Wakizashi - by Gassan Sadakazu - A Gassan Sadakazu WakizashiWakizashi - by Gassan Sadakazu - A Gassan Sadakazu Wakizashi
Sold

Wakizashi

ByGassan Sadakazu
SOLD

More from the Gassan school

Aoi Art
Tokuho
Katana - Tokuho - by Gassan Sadakatsu - Gassan SadakatsuKatana - Tokuho - by Gassan Sadakatsu - Gassan Sadakatsu

Katana

ByGassan Sadakatsu
¥1,800,000
Aoi Art
Tokuho
Katana - Tokuho - by Gassan Sadakatsu - Naniwa Gassan Unryushi Minamoto Sadakazu - NBTHK Tokubetsu Hozon TokenKatana - Tokuho - by Gassan Sadakatsu - Naniwa Gassan Unryushi Minamoto Sadakazu - NBTHK Tokubetsu Hozon Token

Katana

ByGassan Sadakatsu
Starting Bid¥1,650,000
Choshuya
Tokuho
Katana - Tokuho - by Gassan Sadakazu - Signed Naniwa ju Gassan Unryushi Sadakazu tsukuru [Seal] Keio gannen 11 gatsujitsuKatana - Tokuho - by Gassan Sadakazu - Signed Naniwa ju Gassan Unryushi Sadakazu tsukuru [Seal] Keio gannen 11 gatsujitsu

Katana

ByGassan Sadakazu
¥2,500,000
Samurai Shokai
Hozon
Katana - Hozon - by Gassan - Kinpun Mei GassanKatana - Hozon - by Gassan - Kinpun Mei Gassan

Katana

ByGassan
¥980,000
Choshuya
Tokuho
Tanto - Tokuho - by Gassan Sadakatsu - Signed Nihon Satetsu Seirenko wo Motte Osaka ju Gassan Sadakatsu (Kao)Tanto - Tokuho - by Gassan Sadakatsu - Signed Nihon Satetsu Seirenko wo Motte Osaka ju Gassan Sadakatsu (Kao)

Tantō

ByGassan Sadakatsu
¥600,000
World Seiyudo
Hozon
Tanto - Hozon - by Gassan Sadakatsu - Gassan Sadakatsu (with Kao) - NBTHK Hozon TokenTanto - Hozon - by Gassan Sadakatsu - Gassan Sadakatsu (with Kao) - NBTHK Hozon Token

Tantō

ByGassan Sadakatsu
¥2,800,000
Toyuukai
Hozon
Katana - Hozon - by Gassan School - Mumei (Gassan) with NBTHK Hozon CertificateKatana - Hozon - by Gassan School - Mumei (Gassan) with NBTHK Hozon Certificate

Katana

ByGassan School
¥2,500,000
Toushin
Tokuho
Tachi - Tokuho - by Gassan Sadakatsu - Osaka ju Gassan Sadakatsu - Showa 11th year, December, Auspicious DayTachi - Tokuho - by Gassan Sadakatsu - Osaka ju Gassan Sadakatsu - Showa 11th year, December, Auspicious Day

Tachi

ByGassan Sadakatsu
¥2,420,000

Swords

  • Katana
  • Wakizashi
  • Tantō
  • Tachi
  • Naginata
  • Yari
  • Japanese Swords
  • Samurai Swords

Fittings

  • Tsuba
  • Fuchi-Kashira
  • Kozuka
  • Menuki
  • Sword Guards (Tsuba)

Armor

  • Kabuto
  • Samurai Armor
  • All Samurai Armor

By Certification

  • Tokujū
  • Jūyō
  • Tokuho
  • Hozon

Resources

  • Dealer Directory
  • Artist Directory
  • The Daily Kantei
  • Glossary
  • Browse All
Nihontowatch© 2026
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Sold
NihontoWatch MonNihontoWatch
Market
Encyclopedia
Kantei
NihontoWatch MonNihontoWatch
Market
Encyclopedia
Kantei