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Description

It has appeared, it has appeared! A masterpiece tanto forged with the popular, family-tradition Ayasugi-hada by the Living National Treasure Gassan Sadakazu, a name far too famous in the world of swords. In Showa 41, Gassan Sadakazu succeeded to the name of his grandfather, the Imperial Court Artist Gassan Sadakazu. In Showa 46, he became the third swordsmith to be designated as a Living National Treasure after the war, following Takahashi Sadatsugu and Miyairi Akihira. Due to the nine-year ban on Japanese sword production by the occupation forces following Japan's defeat in the war, the extant works of the Living National Treasure Gassan Sadakazu are extremely few, and he is known to the world as a smith of phantom masterpieces. This tanto is a precious work forged with the family-tradition Ayasugi-hada in Showa 48, two years after his designation as a Living National Treasure, a time when his creative will was at its peak and his masterpieces were born. The sugata of this tanto features a shin-no-mune, with a difference between the moto-mihaba and saki-mihaba, presenting an elegant tanto form without sori. The jigane is the Gassan family tradition, forged in the rare and precious Ayasugi-hada, and it is magnificent. The hamon is a nioi-deki with nie-attached notare-midare-ba, interlacing with the Ayasugi-hada of the jihada, and the hataraki within the blade is also superb. The client, Mr. Nagano, is a businessman, and the current owner has entrusted us with this piece, saying, "We have grown old, so please pass this precious Ayasugi-hada tanto to someone who will cherish it." Therefore, we are offering this masterpiece tanto forged in Ayasugi-hada by the Living National Treasure Gassan Sadakazu at a special, low price. Please by all means enjoy this famous tanto forged with the ancient and famous Ayasugi-hada by the phantom Living National Treasure Gassan Sadakazu.

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Swords›月山›Japanese Sword Taia Tanto by Gassan Sadaichi (Living National Treasure), dated March 1973, with Ayasugi-hada
tanto
Gassan Sadaichi

Japanese Sword Taia Tanto by Gassan Sadaichi (Living National Treasure), dated March 1973, with Ayasugi-hada

signed · 月山 · Gendaito · nagasa 17.5cm

¥850,000
Visit seller website →
Tanto
Could you name the smith from the blade alone? Today’s kantei →
Gassan Sadaichi — 1 of 20
Gassan Sadaichi — 2 of 20
Gassan Sadaichi — 3 of 20
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Tanto
Could you name the smith from the blade alone? Today’s kantei →
Measurements & details
Smith
Gassan Sadaichi
Type
Tanto
Period
Gendaito
Signature
Signed
Measurements
Nagasa 17.5cmMotohaba 2.17cmSakihaba 1.55cmKasane 0.52cm
Description

It has appeared, it has appeared! A masterpiece tanto forged with the popular, family-tradition Ayasugi-hada by the Living National Treasure Gassan Sadakazu, a name far too famous in the world of swords. In Showa 41, Gassan Sadakazu succeeded to the name of his grandfather, the Imperial Court Artist Gassan Sadakazu. In Showa 46, he became the third swordsmith to be designated as a Living National Treasure after the war, following Takahashi Sadatsugu and Miyairi Akihira. Due to the nine-year ban on Japanese sword production by the occupation forces following Japan's defeat in the war, the extant works of the Living National Treasure Gassan Sadakazu are extremely few, and he is known to the world as a smith of phantom masterpieces. This tanto is a precious work forged with the family-tradition Ayasugi-hada in Showa 48, two years after his designation as a Living National Treasure, a time when his creative will was at its peak and his masterpieces were born. The sugata of this tanto features a shin-no-mune, with a difference between the moto-mihaba and saki-mihaba, presenting an elegant tanto form without sori. The jigane is the Gassan family tradition, forged in the rare and precious Ayasugi-hada, and it is magnificent. The hamon is a nioi-deki with nie-attached notare-midare-ba, interlacing with the Ayasugi-hada of the jihada, and the hataraki within the blade is also superb. The client, Mr. Nagano, is a businessman, and the current owner has entrusted us with this piece, saying, "We have grown old, so please pass this precious Ayasugi-hada tanto to someone who will cherish it." Therefore, we are offering this masterpiece tanto forged in Ayasugi-hada by the Living National Treasure Gassan Sadakazu at a special, low price. Please by all means enjoy this famous tanto forged with the ancient and famous Ayasugi-hada by the phantom Living National Treasure Gassan Sadakazu.

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 →

Warning — certificate not found

We could not find an authenticity certificate on the seller’s listing. Japanese swords and fittings are normally papered by the NBTHK (or the NTHK). Without one, the attribution is the seller’s own assessment and has not been independently verified — treat it with caution and ask the dealer about certification before buying.

Seller
N
Nipponto
Established 1953 · 73 yrs on the market
🇯🇵Ships from Japan
›
✓Verified dealernipponto.co.jp
Settles in JPY
✓Ships worldwide✓English supportPayPalCredit card
Return policy

For returns due to customer circumstances, the cost is the customer's responsibility. For returns due to our mis-shipment or a defective item, we bear the cost.

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

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Resources

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  • Glossary
  • Browse All
Nihontowatch© 2026
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¥850,000

View on Nipponto

Description

It has appeared, it has appeared! A masterpiece tanto forged with the popular, family-tradition Ayasugi-hada by the Living National Treasure Gassan Sadakazu, a name far too famous in the world of swords. In Showa 41, Gassan Sadakazu succeeded to the name of his grandfather, the Imperial Court Artist Gassan Sadakazu. In Showa 46, he became the third swordsmith to be designated as a Living National Treasure after the war, following Takahashi Sadatsugu and Miyairi Akihira. Due to the nine-year ban on Japanese sword production by the occupation forces following Japan's defeat in the war, the extant works of the Living National Treasure Gassan Sadakazu are extremely few, and he is known to the world as a smith of phantom masterpieces. This tanto is a precious work forged with the family-tradition Ayasugi-hada in Showa 48, two years after his designation as a Living National Treasure, a time when his creative will was at its peak and his masterpieces were born. The sugata of this tanto features a shin-no-mune, with a difference between the moto-mihaba and saki-mihaba, presenting an elegant tanto form without sori. The jigane is the Gassan family tradition, forged in the rare and precious Ayasugi-hada, and it is magnificent. The hamon is a nioi-deki with nie-attached notare-midare-ba, interlacing with the Ayasugi-hada of the jihada, and the hataraki within the blade is also superb. The client, Mr. Nagano, is a businessman, and the current owner has entrusted us with this piece, saying, "We have grown old, so please pass this precious Ayasugi-hada tanto to someone who will cherish it." Therefore, we are offering this masterpiece tanto forged in Ayasugi-hada by the Living National Treasure Gassan Sadakazu at a special, low price. Please by all means enjoy this famous tanto forged with the ancient and famous Ayasugi-hada by the phantom Living National Treasure Gassan Sadakazu.

NihontoWatch MonNihontoWatch
MarketEncyclopediaKantei
Swords›月山›Japanese Sword Taia Tanto by Gassan Sadaichi (Living National Treasure), dated March 1973, with Ayasugi-hada
tanto
Gassan Sadaichi

Japanese Sword Taia Tanto by Gassan Sadaichi (Living National Treasure), dated March 1973, with Ayasugi-hada

signed · 月山 · Gendaito · nagasa 17.5cm

¥850,000
Visit seller website →
Tanto
Could you name the smith from the blade alone? Today’s kantei →
Gassan Sadaichi — 1 of 20
Gassan Sadaichi — 2 of 20
Gassan Sadaichi — 3 of 20
Gassan Sadaichi — 4 of 20
Gassan Sadaichi — 5 of 20
Gassan Sadaichi — 6 of 20
Gassan Sadaichi — 7 of 20
Gassan Sadaichi — 8 of 20
Gassan Sadaichi — 9 of 20
Gassan Sadaichi — 10 of 20
Gassan Sadaichi — 11 of 20
Gassan Sadaichi — 12 of 20
Gassan Sadaichi — 13 of 20
Gassan Sadaichi — 14 of 20
Gassan Sadaichi — 15 of 20
Gassan Sadaichi — 16 of 20
Gassan Sadaichi — 17 of 20
Gassan Sadaichi — 18 of 20
Gassan Sadaichi — 19 of 20
Gassan Sadaichi — 20 of 20
1 / 20
1 / 20
Gassan Sadaichi — 1 of 20Gassan Sadaichi — 2 of 20Gassan Sadaichi — 3 of 20Gassan Sadaichi — 4 of 20Gassan Sadaichi — 5 of 20Gassan Sadaichi — 6 of 20Gassan Sadaichi — 7 of 20Gassan Sadaichi — 8 of 20Gassan Sadaichi — 9 of 20Gassan Sadaichi — 10 of 20Gassan Sadaichi — 11 of 20Gassan Sadaichi — 12 of 20Gassan Sadaichi — 13 of 20Gassan Sadaichi — 14 of 20Gassan Sadaichi — 15 of 20Gassan Sadaichi — 16 of 20Gassan Sadaichi — 17 of 20Gassan Sadaichi — 18 of 20Gassan Sadaichi — 19 of 20Gassan Sadaichi — 20 of 20
Tanto
Could you name the smith from the blade alone? Today’s kantei →
Measurements & details
Smith
Gassan Sadaichi
Type
Tanto
Period
Gendaito
Signature
Signed
Measurements
Nagasa 17.5cmMotohaba 2.17cmSakihaba 1.55cmKasane 0.52cm
Description

It has appeared, it has appeared! A masterpiece tanto forged with the popular, family-tradition Ayasugi-hada by the Living National Treasure Gassan Sadakazu, a name far too famous in the world of swords. In Showa 41, Gassan Sadakazu succeeded to the name of his grandfather, the Imperial Court Artist Gassan Sadakazu. In Showa 46, he became the third swordsmith to be designated as a Living National Treasure after the war, following Takahashi Sadatsugu and Miyairi Akihira. Due to the nine-year ban on Japanese sword production by the occupation forces following Japan's defeat in the war, the extant works of the Living National Treasure Gassan Sadakazu are extremely few, and he is known to the world as a smith of phantom masterpieces. This tanto is a precious work forged with the family-tradition Ayasugi-hada in Showa 48, two years after his designation as a Living National Treasure, a time when his creative will was at its peak and his masterpieces were born. The sugata of this tanto features a shin-no-mune, with a difference between the moto-mihaba and saki-mihaba, presenting an elegant tanto form without sori. The jigane is the Gassan family tradition, forged in the rare and precious Ayasugi-hada, and it is magnificent. The hamon is a nioi-deki with nie-attached notare-midare-ba, interlacing with the Ayasugi-hada of the jihada, and the hataraki within the blade is also superb. The client, Mr. Nagano, is a businessman, and the current owner has entrusted us with this piece, saying, "We have grown old, so please pass this precious Ayasugi-hada tanto to someone who will cherish it." Therefore, we are offering this masterpiece tanto forged in Ayasugi-hada by the Living National Treasure Gassan Sadakazu at a special, low price. Please by all means enjoy this famous tanto forged with the ancient and famous Ayasugi-hada by the phantom Living National Treasure Gassan Sadakazu.

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 →

Warning — certificate not found

We could not find an authenticity certificate on the seller’s listing. Japanese swords and fittings are normally papered by the NBTHK (or the NTHK). Without one, the attribution is the seller’s own assessment and has not been independently verified — treat it with caution and ask the dealer about certification before buying.

Seller
N
Nipponto
Established 1953 · 73 yrs on the market
🇯🇵Ships from Japan
›
✓Verified dealernipponto.co.jp
Settles in JPY
✓Ships worldwide✓English supportPayPalCredit card
Return policy

For returns due to customer circumstances, the cost is the customer's responsibility. For returns due to our mis-shipment or a defective item, we bear the cost.

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

More from the 月山 school

Touken Hataya
Tokuho
Tanto - Tokuho - by Getsusan Sadakatsu - Tokubetsu Hozon Tanto by Getsusan SadakatsuTanto - Tokuho - by Getsusan Sadakatsu - Tokubetsu Hozon Tanto by Getsusan Sadakatsu

Tantō

ByGetsusan Sadakatsu
¥1,100,000

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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¥850,000

View on Nipponto
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Kantei
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