NihontoWatch MonNihontoWatch
Market
Encyclopedia
Kantei
NihontoWatch MonNihontoWatch
Market
Encyclopedia
Kantei

Description

This is a slightly small tanto made by Gassan Sadakazu, a representative swordsmith of the Meiji and Taisho periods. He was appointed as an “Imperial Artist” in 1906 and is known for his excellent skills, including the reproduction of Ayasugi skin. The blade features fine Itame with Masame and Chikei jigane, and a Ko-nie Suguha hamon with Yakizume Boshi. It comes with an NBTHK Hozon Certificate.

NihontoWatch MonNihontoWatch
MarketEncyclopediaKantei
Swords›Sadakazu›Tanto: Imperial Artist Gassan Sadakazu (Spring, 1914) (NBTHK Hozon Token)
tantoTokubetsu Hozon
Gassan Sadakazu

Tanto: Imperial Artist Gassan Sadakazu (Spring, 1914) (NBTHK Hozon Token)

mei · Gassan · Showa (1926-1989) · nagasa 21.1cm

¥850,000
Starting bid
View auction →
Gassan Sadakazu (貞一) · Gassan · Showa (1926-1989)5 works for sale · median ask ¥1,000,000 →
Tanto
Could you name the smith from the blade alone? Today’s kantei →
Gassan Sadakazu — 1 of 4
Gassan Sadakazu — 2 of 4
Gassan Sadakazu — 3 of 4
Gassan Sadakazu — 4 of 4
1 / 4
1 / 4
Gassan Sadakazu — 1 of 4Gassan Sadakazu — 2 of 4Gassan Sadakazu — 3 of 4Gassan Sadakazu — 4 of 4
Gassan Sadakazu (貞一) · Gassan · Showa (1926-1989)5 works for sale · median ask ¥1,000,000 →
Tanto
Could you name the smith from the blade alone? Today’s kantei →
Measurements & details
Smith
Gassan Sadakazu
Type
Tanto
Period
Around 1907–1995(Showa)
Signature
Signed
Measurements
Nagasa 21.1cmMotohaba 2.21cmKasane 0.54cmWeight 11g
Description

This is a slightly small tanto made by Gassan Sadakazu, a representative swordsmith of the Meiji and Taisho periods. He was appointed as an “Imperial Artist” in 1906 and is known for his excellent skills, including the reproduction of Ayasugi skin. The blade features fine Itame with Masame and Chikei jigane, and a Ko-nie Suguha hamon with Yakizume Boshi. It comes with an NBTHK Hozon 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

Shōwa to the present: destruction and revival

›

The twentieth century nearly killed the craft twice: wartime distortion, then the occupation ban. The NBTHK’s founding in 1948 and licensed forging from 1953 rebuilt the sword as an art, crowned by Living National Treasures and the mukansa rank.

Shōwa to the present: destruction and revival →

NBTHK Certificate
Tokubetsu Hozon Tōken特別保存刀剣
Sword Especially Worthy of Preservation
›

A Hozon-certified blade judged to show notably superior workmanship and a better state of preservation. The bar is higher: re-tempered blades and most unsigned Muromachi/Edo works are excluded.

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→

More works by Gassan Sadakazu

View all →
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
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

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
TermsPrivacyCookiesAbout

Starting Bid

¥850,000

View on Aoi Art

Description

This is a slightly small tanto made by Gassan Sadakazu, a representative swordsmith of the Meiji and Taisho periods. He was appointed as an “Imperial Artist” in 1906 and is known for his excellent skills, including the reproduction of Ayasugi skin. The blade features fine Itame with Masame and Chikei jigane, and a Ko-nie Suguha hamon with Yakizume Boshi. It comes with an NBTHK Hozon Certificate.

NihontoWatch MonNihontoWatch
MarketEncyclopediaKantei
Swords›Sadakazu›Tanto: Imperial Artist Gassan Sadakazu (Spring, 1914) (NBTHK Hozon Token)
tantoTokubetsu Hozon
Gassan Sadakazu

Tanto: Imperial Artist Gassan Sadakazu (Spring, 1914) (NBTHK Hozon Token)

mei · Gassan · Showa (1926-1989) · nagasa 21.1cm

¥850,000
Starting bid
View auction →
Gassan Sadakazu (貞一) · Gassan · Showa (1926-1989)5 works for sale · median ask ¥1,000,000 →
Tanto
Could you name the smith from the blade alone? Today’s kantei →
Gassan Sadakazu — 1 of 4
Gassan Sadakazu — 2 of 4
Gassan Sadakazu — 3 of 4
Gassan Sadakazu — 4 of 4
1 / 4
1 / 4
Gassan Sadakazu — 1 of 4Gassan Sadakazu — 2 of 4Gassan Sadakazu — 3 of 4Gassan Sadakazu — 4 of 4
Gassan Sadakazu (貞一) · Gassan · Showa (1926-1989)5 works for sale · median ask ¥1,000,000 →
Tanto
Could you name the smith from the blade alone? Today’s kantei →
Measurements & details
Smith
Gassan Sadakazu
Type
Tanto
Period
Around 1907–1995(Showa)
Signature
Signed
Measurements
Nagasa 21.1cmMotohaba 2.21cmKasane 0.54cmWeight 11g
Description

This is a slightly small tanto made by Gassan Sadakazu, a representative swordsmith of the Meiji and Taisho periods. He was appointed as an “Imperial Artist” in 1906 and is known for his excellent skills, including the reproduction of Ayasugi skin. The blade features fine Itame with Masame and Chikei jigane, and a Ko-nie Suguha hamon with Yakizume Boshi. It comes with an NBTHK Hozon 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

Shōwa to the present: destruction and revival

›

The twentieth century nearly killed the craft twice: wartime distortion, then the occupation ban. The NBTHK’s founding in 1948 and licensed forging from 1953 rebuilt the sword as an art, crowned by Living National Treasures and the mukansa rank.

Shōwa to the present: destruction and revival →

NBTHK Certificate
Tokubetsu Hozon Tōken特別保存刀剣
Sword Especially Worthy of Preservation
›

A Hozon-certified blade judged to show notably superior workmanship and a better state of preservation. The bar is higher: re-tempered blades and most unsigned Muromachi/Edo works are excluded.

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→

More works by Gassan Sadakazu

View all →
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
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

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
TermsPrivacyCookiesAbout

Starting Bid

¥850,000

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