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Description

This is a tanto by Gassan Sadakazu, dated Meiji 5 (1872). It features a combination of fine ko-itame hada and ayasugi hada, with a straight suguha hamon. The blade comes with an aikuchi koshirae and is accompanied by an NBTHK Hozon Token certificate.

Certificate Reading

Certificate reading — 銘 月山貞一作(刻印) 明治五年秋

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Swords›Sadakazu›Tanto: Gassan Sadakazu (Kao) Meiji 5 (1872) (NBTHK Hozon Token)
tantoHozon
Gassan Sadakazu

Tanto: Gassan Sadakazu (Kao) Meiji 5 (1872) (NBTHK Hozon Token)

mei · Gassan · Meiji · nagasa 23.1cm

¥800,000
Visit seller website →
Gassan Sadakazu (貞一) · Gassan · Meiji5 works for sale · median ask ¥1,000,000 →
TantoHozon
Could you name the smith from the blade alone? Today’s kantei →
Gassan Sadakazu — 1 of 7
Gassan Sadakazu — 2 of 7
Gassan Sadakazu — 3 of 7
Gassan Sadakazu — 4 of 7
Gassan Sadakazu — 5 of 7
Gassan Sadakazu — 6 of 7
Gassan Sadakazu — 7 of 7
1 / 7
1 / 7
Gassan Sadakazu — 1 of 7Gassan Sadakazu — 2 of 7Gassan Sadakazu — 3 of 7Gassan Sadakazu — 4 of 7Gassan Sadakazu — 5 of 7Gassan Sadakazu — 6 of 7Gassan Sadakazu — 7 of 7
Gassan Sadakazu (貞一) · Gassan · Meiji5 works for sale · median ask ¥1,000,000 →
TantoHozon
Could you name the smith from the blade alone? Today’s kantei →
Measurements & details
Smith
Gassan Sadakazu
Type
Tanto
Period
Around 1907–1995(Showa)
Province
Settsu
Signature
Signed
Measurements
Nagasa 23.1cmMotohaba 2cmSakihaba 2.53cmKasane 0.53cmWeight 105g
Description

This is a tanto by Gassan Sadakazu, dated Meiji 5 (1872). It features a combination of fine ko-itame hada and ayasugi hada, with a straight suguha hamon. The blade comes with an aikuchi koshirae and is accompanied by an NBTHK Hozon Token certificate.

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.

Signed: 月山貞一作(刻印) 明治五年秋 (Gassan Sadakazu)
As written on the certificate
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→
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Return policy

If you wish to return an item, please notify us within 3 days of receipt. After this period we cannot accept cancellations. Please ship the return to us within 5 business days. Cancellation is conditional on the item being kept in the same condition as at the time of sale, so please handle it with care.

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

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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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Tanto - Hozon - by Gassan Sadakazu - Gassan Sadakazu Tanto Hozon TokenTanto - Hozon - by Gassan Sadakazu - Gassan Sadakazu Tanto Hozon Token
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Tanto - Hozon - by Gassan Sadakatsu - Gassan Sadakatsu (with Kao) - NBTHK Hozon TokenTanto - Hozon - by Gassan Sadakatsu - Gassan Sadakatsu (with Kao) - NBTHK Hozon Token

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By Certification

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Nihontowatch© 2026
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¥800,000

View on Aoi Art

Description

This is a tanto by Gassan Sadakazu, dated Meiji 5 (1872). It features a combination of fine ko-itame hada and ayasugi hada, with a straight suguha hamon. The blade comes with an aikuchi koshirae and is accompanied by an NBTHK Hozon Token certificate.

Certificate Reading

Certificate reading — 銘 月山貞一作(刻印) 明治五年秋

NihontoWatch MonNihontoWatch
MarketEncyclopediaKantei
Swords›Sadakazu›Tanto: Gassan Sadakazu (Kao) Meiji 5 (1872) (NBTHK Hozon Token)
tantoHozon
Gassan Sadakazu

Tanto: Gassan Sadakazu (Kao) Meiji 5 (1872) (NBTHK Hozon Token)

mei · Gassan · Meiji · nagasa 23.1cm

¥800,000
Visit seller website →
Gassan Sadakazu (貞一) · Gassan · Meiji5 works for sale · median ask ¥1,000,000 →
TantoHozon
Could you name the smith from the blade alone? Today’s kantei →
Gassan Sadakazu — 1 of 7
Gassan Sadakazu — 2 of 7
Gassan Sadakazu — 3 of 7
Gassan Sadakazu — 4 of 7
Gassan Sadakazu — 5 of 7
Gassan Sadakazu — 6 of 7
Gassan Sadakazu — 7 of 7
1 / 7
1 / 7
Gassan Sadakazu — 1 of 7Gassan Sadakazu — 2 of 7Gassan Sadakazu — 3 of 7Gassan Sadakazu — 4 of 7Gassan Sadakazu — 5 of 7Gassan Sadakazu — 6 of 7Gassan Sadakazu — 7 of 7
Gassan Sadakazu (貞一) · Gassan · Meiji5 works for sale · median ask ¥1,000,000 →
TantoHozon
Could you name the smith from the blade alone? Today’s kantei →
Measurements & details
Smith
Gassan Sadakazu
Type
Tanto
Period
Around 1907–1995(Showa)
Province
Settsu
Signature
Signed
Measurements
Nagasa 23.1cmMotohaba 2cmSakihaba 2.53cmKasane 0.53cmWeight 105g
Description

This is a tanto by Gassan Sadakazu, dated Meiji 5 (1872). It features a combination of fine ko-itame hada and ayasugi hada, with a straight suguha hamon. The blade comes with an aikuchi koshirae and is accompanied by an NBTHK Hozon Token certificate.

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.

Signed: 月山貞一作(刻印) 明治五年秋 (Gassan Sadakazu)
As written on the certificate
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
A
Aoi Art
🇯🇵Ships from Japan
›
✓Verified dealeraoijapan.com
Settles in JPY
✓Ships worldwide✓English supportWire transferPayPalCredit card
Return policy

If you wish to return an item, please notify us within 3 days of receipt. After this period we cannot accept cancellations. Please ship the return to us within 5 business days. Cancellation is conditional on the item being kept in the same condition as at the time of sale, so please handle it with care.

View all of Aoi Art’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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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

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

Tantō

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

Katana

ByGassan Sadakazu
SOLD
Iida Koendo
Hozon
Tachi - Hozon - by Gassan Sadakazu - Shinto Tachi: Gassan Sadakazu, Made in Meiji 34 (1901) for Mizusawa Masao, with NBTHK Hozon Token CertificateTachi - Hozon - by Gassan Sadakazu - Shinto Tachi: Gassan Sadakazu, Made in Meiji 34 (1901) for Mizusawa Masao, with NBTHK Hozon Token Certificate
Sold

Tachi

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

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

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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
TermsPrivacyCookiesAbout

¥800,000

View on Aoi Art
NihontoWatch MonNihontoWatch
Market
Encyclopedia
Kantei
NihontoWatch MonNihontoWatch
Market
Encyclopedia
Kantei