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Description

This is a katana by Shinbo Yoshiharu, a student of the Living National Treasure Miyairi Akihira. The blade was made in August 1971 and was previously owned by the 2nd generation Nagai Yoshiharu. It comes with an NBTHK Hozon certificate.

Certificate Reading

Certificate reading — 無銘(会津正阿弥)

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MarketEncyclopediaKantei
Swords›Yoshiharu›Katana: Shinbo Yoshiharu, August 1971, formerly owned by 2nd Gen. Nagai Yoshiharu
katanaHozon
Yoshiharu

Katana: Shinbo Yoshiharu, August 1971, formerly owned by 2nd Gen. Nagai Yoshiharu

mei · Miyairi Akihira School · Showa (1926-1989) · nagasa 61.2cm · sori 1.8cm

¥580,000
Visit seller website →
Yoshiharu (義治) · Miyairi Akihira School · Showa (1926-1989)2 works for sale →
KatanaHozon
Could you name the smith from the blade alone? Today’s kantei →
Yoshiharu — 1 of 6
Yoshiharu — 2 of 6
Yoshiharu — 3 of 6
Yoshiharu — 4 of 6
Yoshiharu — 5 of 6
Yoshiharu — 6 of 6
1 / 6
1 / 6
Yoshiharu — 1 of 6Yoshiharu — 2 of 6Yoshiharu — 3 of 6Yoshiharu — 4 of 6Yoshiharu — 5 of 6Yoshiharu — 6 of 6
Yoshiharu (義治) · Miyairi Akihira School · Showa (1926-1989)2 works for sale →
KatanaHozon
Could you name the smith from the blade alone? Today’s kantei →
Measurements & details
Smith
Yoshiharu
Type
Katana
Period
Around 1926–1989(Showa)
Province
Nigata
Signature
Signed
Measurements
Nagasa 61.2cmSori 1.8cmMotohaba 3.45cmSakihaba 2.7cmKasane 0.65cm
Description

This is a katana by Shinbo Yoshiharu, a student of the Living National Treasure Miyairi Akihira. The blade was made in August 1971 and was previously owned by the 2nd generation Nagai Yoshiharu. It comes with an NBTHK Hozon certificate.

About the maker

Yoshiharu

義治

around 1926-1989

2 pieces on the market now

›
2 works by Yoshiharu on the market→
Yoshiharu — 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
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.

Unsigned (attr. Yoshiharu)
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
S
Samurai Shokai
🇯🇵Ships from Japan
›
✓Verified dealersamuraishokai.jp
Settles in JPY
·Domestic shipping onlyWire transferCredit card
Return policy

Returns possible within 3 days of arrival. Customer pays return shipping and bank transfer fees. Excluded: condition differs from sale, 3+ days passed, overseas delivery, in-store purchases, and deposit transactions.

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

More works by Yoshiharu

View all →
Toushin
Gendaitō
Katana - by Yoshiharu - Toto ju Minamoto YoshiharuKatana - by Yoshiharu - Toto ju Minamoto Yoshiharu

Katana

ByYoshiharu
¥605,000

Previously sold by Yoshiharu

View all →
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Gendaitō
Tanto - by Yoshiharu - Tanto by YoshiharuTanto - by Yoshiharu - Tanto by Yoshiharu
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Tantō

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Katana - by Yoshiharu - Gendaito Katana: Shinbo Yoshiharu - 2 Shaku 4 Sun, with ShirasayaKatana - by Yoshiharu - Gendaito Katana: Shinbo Yoshiharu - 2 Shaku 4 Sun, with Shirasaya
Sold

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ByYoshiharu
SOLD
Ikeda Art
Gendaitō
Katana - by Yoshiharu - YoshiharuKatana - by Yoshiharu - Yoshiharu
Sold

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SOLD

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

¥580,000

View on Samurai Shokai

Description

This is a katana by Shinbo Yoshiharu, a student of the Living National Treasure Miyairi Akihira. The blade was made in August 1971 and was previously owned by the 2nd generation Nagai Yoshiharu. It comes with an NBTHK Hozon certificate.

Certificate Reading

Certificate reading — 無銘(会津正阿弥)

NihontoWatch MonNihontoWatch
MarketEncyclopediaKantei
Swords›Yoshiharu›Katana: Shinbo Yoshiharu, August 1971, formerly owned by 2nd Gen. Nagai Yoshiharu
katanaHozon
Yoshiharu

Katana: Shinbo Yoshiharu, August 1971, formerly owned by 2nd Gen. Nagai Yoshiharu

mei · Miyairi Akihira School · Showa (1926-1989) · nagasa 61.2cm · sori 1.8cm

¥580,000
Visit seller website →
Yoshiharu (義治) · Miyairi Akihira School · Showa (1926-1989)2 works for sale →
KatanaHozon
Could you name the smith from the blade alone? Today’s kantei →
Yoshiharu — 1 of 6
Yoshiharu — 2 of 6
Yoshiharu — 3 of 6
Yoshiharu — 4 of 6
Yoshiharu — 5 of 6
Yoshiharu — 6 of 6
1 / 6
1 / 6
Yoshiharu — 1 of 6Yoshiharu — 2 of 6Yoshiharu — 3 of 6Yoshiharu — 4 of 6Yoshiharu — 5 of 6Yoshiharu — 6 of 6
Yoshiharu (義治) · Miyairi Akihira School · Showa (1926-1989)2 works for sale →
KatanaHozon
Could you name the smith from the blade alone? Today’s kantei →
Measurements & details
Smith
Yoshiharu
Type
Katana
Period
Around 1926–1989(Showa)
Province
Nigata
Signature
Signed
Measurements
Nagasa 61.2cmSori 1.8cmMotohaba 3.45cmSakihaba 2.7cmKasane 0.65cm
Description

This is a katana by Shinbo Yoshiharu, a student of the Living National Treasure Miyairi Akihira. The blade was made in August 1971 and was previously owned by the 2nd generation Nagai Yoshiharu. It comes with an NBTHK Hozon certificate.

About the maker

Yoshiharu

義治

around 1926-1989

2 pieces on the market now

›
2 works by Yoshiharu on the market→
Yoshiharu — 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
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.

Unsigned (attr. Yoshiharu)
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
S
Samurai Shokai
🇯🇵Ships from Japan
›
✓Verified dealersamuraishokai.jp
Settles in JPY
·Domestic shipping onlyWire transferCredit card
Return policy

Returns possible within 3 days of arrival. Customer pays return shipping and bank transfer fees. Excluded: condition differs from sale, 3+ days passed, overseas delivery, in-store purchases, and deposit transactions.

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

More works by Yoshiharu

View all →
Toushin
Gendaitō
Katana - by Yoshiharu - Toto ju Minamoto YoshiharuKatana - by Yoshiharu - Toto ju Minamoto Yoshiharu

Katana

ByYoshiharu
¥605,000

Previously sold by Yoshiharu

View all →
World Seiyudo
Gendaitō
Tanto - by Yoshiharu - Tanto by YoshiharuTanto - by Yoshiharu - Tanto by Yoshiharu
Sold

Tantō

ByYoshiharu
SOLD
Giheiya
Gendaitō
Katana - by Yoshiharu - Gendaito Katana: Shinbo Yoshiharu - 2 Shaku 4 Sun, with ShirasayaKatana - by Yoshiharu - Gendaito Katana: Shinbo Yoshiharu - 2 Shaku 4 Sun, with Shirasaya
Sold

Katana

ByYoshiharu
SOLD
Ikeda Art
Gendaitō
Katana - by Yoshiharu - YoshiharuKatana - by Yoshiharu - Yoshiharu
Sold

Katana

ByYoshiharu
SOLD

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

¥580,000

View on Samurai Shokai
NihontoWatch MonNihontoWatch
Market
Encyclopedia
Kantei
NihontoWatch MonNihontoWatch
Market
Encyclopedia
Kantei