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Description

This is a katana made by Sou Tsutomu, a swordsmith born in Fukuoka in 1945. The blade is over 80cm long with a wide mihaba of 3.4cm and weighs 937g. It features a bright and clear jigane, deep nie-nioi, and a toran-ba hamon, making it a masterpiece.

NihontoWatch MonNihontoWatch
MarketEncyclopediaKantei
Swords›Tsutomu›Katana: Sou Tsutomu - Tokubetsu Hozon Token
katanaTokubetsu Hozon
Tsutomu

Katana: Sou Tsutomu - Tokubetsu Hozon Token

mei · Gendaito · nagasa 80.8cm · sori 1.6cm

SOLD
Tsutomu — 1 of 2
Tsutomu — 2 of 2
1 / 2
1 / 2
Tsutomu — 1 of 2Tsutomu — 2 of 2
Measurements & details
Smith
Tsutomu
Type
Katana
Period
Around 1926–1989(Showa)
Province
Chikushi
Signature
Signed
Measurements
Nagasa 80.8cmSori 1.6cmMotohaba 3.4cmSakihaba 2.6cmKasane 0.65cmWeight 937g
Description

This is a katana made by Sou Tsutomu, a swordsmith born in Fukuoka in 1945. The blade is over 80cm long with a wide mihaba of 3.4cm and weighs 937g. It features a bright and clear jigane, deep nie-nioi, and a toran-ba hamon, making it a masterpiece.

About the maker

Tsutomu

勉

Fukuoka · around 1926-1989

›
Tsutomu — full profile

Historical context

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
E
Eirakudo
🇯🇵Ships from Japan
›
✓Verified dealereirakudo.shop
✓Ships worldwide✓English supportWire transferCredit card
Return policy

Returns/exchanges/cancellations not accepted after shipment except for significant defects; if defective, return/exchange possible within 3 days of arrival (return shipping paid by customer).

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

Previously sold by Tsutomu

Katanahanbai
Tokuho
Katana - Tokuho - by Tsutomu - So TsutomuKatana - Tokuho - by Tsutomu - So Tsutomu
Sold

Katana

ByTsutomu
SOLD
Nihonto US
Hozon
Tachi - Hozon - by Tsutomu - Chikushu Sou TsumuTachi - Hozon - by Tsutomu - Chikushu Sou Tsumu
Sold

Tachi

ByTsutomu
SOLD
Eirakudo
Gendaitō
Katana - by Tsutomu - Sou Tsutomu MukansaKatana - by Tsutomu - Sou Tsutomu Mukansa
Sold

Katana

ByTsutomu
SOLD
Eirakudo
Hozon
Wakizashi - Hozon - by Tsutomu - Sou Tsutomu - Hozon TokenWakizashi - Hozon - by Tsutomu - Sou Tsutomu - Hozon Token
Sold

Wakizashi

ByTsutomu
SOLD
World Seiyudo
Tokuho
Wakizashi - Tokuho - by Tsutomu - Chikusyu-sannoju Sou Tsutomu - Tokubetsu Hozon TokenWakizashi - Tokuho - by Tsutomu - Chikusyu-sannoju Sou Tsutomu - Tokubetsu Hozon Token
Sold

Wakizashi

ByTsutomu
SOLD
World Seiyudo
Hozon
Katana - Hozon - by Tsutomu - Chikusyu Sannou-jyu Sou Tsutomu - Mukansa, Hozon TokenKatana - Hozon - by Tsutomu - Chikusyu Sannou-jyu Sou Tsutomu - Mukansa, Hozon Token
Sold

Katana

ByTsutomu
SOLD
Eirakudo
Gendaitō
Katana - by Tsutomu - Sou Tsutomu Mukansa TosyoKatana - by Tsutomu - Sou Tsutomu Mukansa Tosyo
Sold

Katana

ByTsutomu
SOLD
Choshuya
Gendaitō
Wakizashi - by Tsutomu - So TsutomuWakizashi - by Tsutomu - So Tsutomu
Sold

Wakizashi

ByTsutomu
SOLD

Swords

  • Katana
  • Wakizashi
  • Tantō
  • Tachi
  • Naginata
  • Yari

Fittings

  • Tsuba
  • Fuchi-Kashira
  • Kozuka
  • Menuki

Armor

  • Kabuto
  • Samurai Armor

By Certification

  • Tokujū
  • Jūyō
  • Tokuho
  • Hozon

Resources

  • Dealer Directory
  • Artist Directory
  • The Daily Kantei
  • Glossary
  • Browse All
Nihontowatch© 2026
TermsPrivacyCookiesAbout

Description

This is a katana made by Sou Tsutomu, a swordsmith born in Fukuoka in 1945. The blade is over 80cm long with a wide mihaba of 3.4cm and weighs 937g. It features a bright and clear jigane, deep nie-nioi, and a toran-ba hamon, making it a masterpiece.

NihontoWatch MonNihontoWatch
MarketEncyclopediaKantei
Swords›Tsutomu›Katana: Sou Tsutomu - Tokubetsu Hozon Token
katanaTokubetsu Hozon
Tsutomu

Katana: Sou Tsutomu - Tokubetsu Hozon Token

mei · Gendaito · nagasa 80.8cm · sori 1.6cm

SOLD
Tsutomu — 1 of 2
Tsutomu — 2 of 2
1 / 2
1 / 2
Tsutomu — 1 of 2Tsutomu — 2 of 2
Measurements & details
Smith
Tsutomu
Type
Katana
Period
Around 1926–1989(Showa)
Province
Chikushi
Signature
Signed
Measurements
Nagasa 80.8cmSori 1.6cmMotohaba 3.4cmSakihaba 2.6cmKasane 0.65cmWeight 937g
Description

This is a katana made by Sou Tsutomu, a swordsmith born in Fukuoka in 1945. The blade is over 80cm long with a wide mihaba of 3.4cm and weighs 937g. It features a bright and clear jigane, deep nie-nioi, and a toran-ba hamon, making it a masterpiece.

About the maker

Tsutomu

勉

Fukuoka · around 1926-1989

›
Tsutomu — full profile

Historical context

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
E
Eirakudo
🇯🇵Ships from Japan
›
✓Verified dealereirakudo.shop
✓Ships worldwide✓English supportWire transferCredit card
Return policy

Returns/exchanges/cancellations not accepted after shipment except for significant defects; if defective, return/exchange possible within 3 days of arrival (return shipping paid by customer).

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

Previously sold by Tsutomu

Katanahanbai
Tokuho
Katana - Tokuho - by Tsutomu - So TsutomuKatana - Tokuho - by Tsutomu - So Tsutomu
Sold

Katana

ByTsutomu
SOLD
Nihonto US
Hozon
Tachi - Hozon - by Tsutomu - Chikushu Sou TsumuTachi - Hozon - by Tsutomu - Chikushu Sou Tsumu
Sold

Tachi

ByTsutomu
SOLD
Eirakudo
Gendaitō
Katana - by Tsutomu - Sou Tsutomu MukansaKatana - by Tsutomu - Sou Tsutomu Mukansa
Sold

Katana

ByTsutomu
SOLD
Eirakudo
Hozon
Wakizashi - Hozon - by Tsutomu - Sou Tsutomu - Hozon TokenWakizashi - Hozon - by Tsutomu - Sou Tsutomu - Hozon Token
Sold

Wakizashi

ByTsutomu
SOLD
World Seiyudo
Tokuho
Wakizashi - Tokuho - by Tsutomu - Chikusyu-sannoju Sou Tsutomu - Tokubetsu Hozon TokenWakizashi - Tokuho - by Tsutomu - Chikusyu-sannoju Sou Tsutomu - Tokubetsu Hozon Token
Sold

Wakizashi

ByTsutomu
SOLD
World Seiyudo
Hozon
Katana - Hozon - by Tsutomu - Chikusyu Sannou-jyu Sou Tsutomu - Mukansa, Hozon TokenKatana - Hozon - by Tsutomu - Chikusyu Sannou-jyu Sou Tsutomu - Mukansa, Hozon Token
Sold

Katana

ByTsutomu
SOLD
Eirakudo
Gendaitō
Katana - by Tsutomu - Sou Tsutomu Mukansa TosyoKatana - by Tsutomu - Sou Tsutomu Mukansa Tosyo
Sold

Katana

ByTsutomu
SOLD
Choshuya
Gendaitō
Wakizashi - by Tsutomu - So TsutomuWakizashi - by Tsutomu - So Tsutomu
Sold

Wakizashi

ByTsutomu
SOLD

Swords

  • Katana
  • Wakizashi
  • Tantō
  • Tachi
  • Naginata
  • Yari

Fittings

  • Tsuba
  • Fuchi-Kashira
  • Kozuka
  • Menuki

Armor

  • Kabuto
  • Samurai Armor

By Certification

  • Tokujū
  • Jūyō
  • Tokuho
  • Hozon

Resources

  • Dealer Directory
  • Artist Directory
  • The Daily Kantei
  • Glossary
  • Browse All
Nihontowatch© 2026
TermsPrivacyCookiesAbout
NihontoWatch Mon

NihontoWatch

Market
Encyclopedia
Kantei
NihontoWatch Mon

NihontoWatch

Market
Encyclopedia
Kantei