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Description

This is a tanto made by Sakai Ikkansai Shigemasa in Tokyo during the Showa era (1976). Shigemasa was a highly regarded swordsmith who was certified as Mukansa by the Japanese Art Sword Preservation Society. He was active both before and after the war and left a significant mark on Japanese sword history.

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Swords›Shigemasa›Tanto: Sakai Ikkansai Shigemasa - Mukansa
tanto
Kasama Ikkansai Shigemasa

Tanto: Sakai Ikkansai Shigemasa - Mukansa

mei · Showa (1926-1989) · nagasa 27.4cm

SOLD
Kasama Ikkansai Shigemasa — 1 of 3
Kasama Ikkansai Shigemasa — 2 of 3
Kasama Ikkansai Shigemasa — 3 of 3
1 / 3
1 / 3
Kasama Ikkansai Shigemasa — 1 of 3Kasama Ikkansai Shigemasa — 2 of 3Kasama Ikkansai Shigemasa — 3 of 3
Measurements & details
Smith
Kasama Ikkansai Shigemasa
Type
Tanto
Period
Around 1926–1989(Showa)
Province
Tokyo
Signature
Signed
Measurements
Nagasa 27.4cmMotohaba 2.7cmSakihaba 2.2cmKasane 0.63cm
Description

This is a tanto made by Sakai Ikkansai Shigemasa in Tokyo during the Showa era (1976). Shigemasa was a highly regarded swordsmith who was certified as Mukansa by the Japanese Art Sword Preservation Society. He was active both before and after the war and left a significant mark on Japanese sword history.

About the maker

Shigemasa

繁政

around 1926-1989

4 pieces on the market now

›
4 works by Shigemasa on the market→
Shigemasa — 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 →

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
W
World Seiyudo
Established 2008 · 18 yrs on the market
🇯🇵Ships from Japan
›
✓Verified dealerworld-seiyudo.com
✓Ships worldwide✓English supportWire transferPayPalCredit card
Return policy

No cooling-off period or returns; refund only if the purchased sword is proven fake, capped at purchase price (excludes commission sales, accessories, auction items).

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

More works by Kasama Ikkansai Shigemasa

View all →
Katanahanbai
Hozon
Tanto - Hozon - by Kasama Ikkansai Shigemasa - Sakai Ikkansai ShigemasaTanto - Hozon - by Kasama Ikkansai Shigemasa - Sakai Ikkansai Shigemasa

Tantō

ByKasama Ikkansai Shigemasa
¥660,000
Ayakashi
Gendaitō
Daisho - by Kasama Ikkansai Shigemasa - Daisho: Sakai Ikkanzai ShigemasaDaisho - by Kasama Ikkansai Shigemasa - Daisho: Sakai Ikkanzai Shigemasa

Daishō

ByKasama Ikkansai Shigemasa
¥150,000
Aoi Art
Hozon
Katana - Hozon - by Kasama Ikkansai Shigemasa - Sakai Ikkansai ShigemasaKatana - Hozon - by Kasama Ikkansai Shigemasa - Sakai Ikkansai Shigemasa

Katana

ByKasama Ikkansai Shigemasa
¥950,000

Previously sold by Kasama Ikkansai Shigemasa

Aoi Art
Tokuho
Wakizashi - Tokuho - by Kasama Ikkansai Shigemasa - Sakai Ikkan-Sai ShigemasaWakizashi - Tokuho - by Kasama Ikkansai Shigemasa - Sakai Ikkan-Sai Shigemasa
Sold

Wakizashi

ByKasama Ikkansai Shigemasa
SOLD
Choshuya
Gendaitō
Tanto - by Kasama Ikkansai Shigemasa - Sakai Ikkan-Sai ShigemasaTanto - by Kasama Ikkansai Shigemasa - Sakai Ikkan-Sai Shigemasa
Sold

Tantō

ByKasama Ikkansai Shigemasa
SOLD
Choshuya
Gendaitō
Tanto - by Kasama Ikkansai Shigemasa - Japanese Sword for Sale | Ginza Choshuya | Signed Sakai Ikkan-sai Shigemasa with carving (kaō) - Auspicious day in midsummer, 1984Tanto - by Kasama Ikkansai Shigemasa - Japanese Sword for Sale | Ginza Choshuya | Signed Sakai Ikkan-sai Shigemasa with carving (kaō) - Auspicious day in midsummer, 1984
Sold

Tantō

ByKasama Ikkansai Shigemasa
SOLD
World Seiyudo
Hozon
Katana - Hozon - by Kasama Ikkansai Shigemasa - Ikkansai Sigemasa - Mukansa, NBTHK Hozon TokenKatana - Hozon - by Kasama Ikkansai Shigemasa - Ikkansai Sigemasa - Mukansa, NBTHK Hozon Token
Sold

Katana

ByKasama Ikkansai Shigemasa
SOLD
Samurai Museum
Hozon
Tanto - Hozon - by Kasama Ikkansai Shigemasa - Modern Japanese Sword Gendaito Tanto Signed by Shigemasa NBTHK Hozon CertificateTanto - Hozon - by Kasama Ikkansai Shigemasa - Modern Japanese Sword Gendaito Tanto Signed by Shigemasa NBTHK Hozon Certificate
Sold

Tantō

ByKasama Ikkansai Shigemasa
SOLD
Kusanagi
Hozon
Katana - Hozon - by Kasama Ikkansai Shigemasa - 無鑑査注文打ち一文字写し『尽忠報国一貫斎繁正』『昭和十八年六月日』保存刀剣Katana - Hozon - by Kasama Ikkansai Shigemasa - 無鑑査注文打ち一文字写し『尽忠報国一貫斎繁正』『昭和十八年六月日』保存刀剣
Sold

Katana

ByKasama Ikkansai Shigemasa
SOLD
World Seiyudo
Tokuho
Katana - Tokuho - by Kasama Ikkansai Shigemasa - Sakai Ikkansai Sigemasa - Tokubetsu Hozon TokenKatana - Tokuho - by Kasama Ikkansai Shigemasa - Sakai Ikkansai Sigemasa - Tokubetsu Hozon Token
Sold

Katana

ByKasama Ikkansai Shigemasa
SOLD
Giheiya
Gendaitō
Wakizashi - by Kasama Ikkansai Shigemasa - Mukansa Swordsmith Sakai Ikkansai Shigemasa - 45.14cm, with ShirasayaWakizashi - by Kasama Ikkansai Shigemasa - Mukansa Swordsmith Sakai Ikkansai Shigemasa - 45.14cm, with Shirasaya
Sold

Wakizashi

ByKasama Ikkansai Shigemasa
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
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Description

This is a tanto made by Sakai Ikkansai Shigemasa in Tokyo during the Showa era (1976). Shigemasa was a highly regarded swordsmith who was certified as Mukansa by the Japanese Art Sword Preservation Society. He was active both before and after the war and left a significant mark on Japanese sword history.

NihontoWatch MonNihontoWatch
MarketEncyclopediaKantei
Swords›Shigemasa›Tanto: Sakai Ikkansai Shigemasa - Mukansa
tanto
Kasama Ikkansai Shigemasa

Tanto: Sakai Ikkansai Shigemasa - Mukansa

mei · Showa (1926-1989) · nagasa 27.4cm

SOLD
Kasama Ikkansai Shigemasa — 1 of 3
Kasama Ikkansai Shigemasa — 2 of 3
Kasama Ikkansai Shigemasa — 3 of 3
1 / 3
1 / 3
Kasama Ikkansai Shigemasa — 1 of 3Kasama Ikkansai Shigemasa — 2 of 3Kasama Ikkansai Shigemasa — 3 of 3
Measurements & details
Smith
Kasama Ikkansai Shigemasa
Type
Tanto
Period
Around 1926–1989(Showa)
Province
Tokyo
Signature
Signed
Measurements
Nagasa 27.4cmMotohaba 2.7cmSakihaba 2.2cmKasane 0.63cm
Description

This is a tanto made by Sakai Ikkansai Shigemasa in Tokyo during the Showa era (1976). Shigemasa was a highly regarded swordsmith who was certified as Mukansa by the Japanese Art Sword Preservation Society. He was active both before and after the war and left a significant mark on Japanese sword history.

About the maker

Shigemasa

繁政

around 1926-1989

4 pieces on the market now

›
4 works by Shigemasa on the market→
Shigemasa — 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 →

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
W
World Seiyudo
Established 2008 · 18 yrs on the market
🇯🇵Ships from Japan
›
✓Verified dealerworld-seiyudo.com
✓Ships worldwide✓English supportWire transferPayPalCredit card
Return policy

No cooling-off period or returns; refund only if the purchased sword is proven fake, capped at purchase price (excludes commission sales, accessories, auction items).

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

More works by Kasama Ikkansai Shigemasa

View all →
Katanahanbai
Hozon
Tanto - Hozon - by Kasama Ikkansai Shigemasa - Sakai Ikkansai ShigemasaTanto - Hozon - by Kasama Ikkansai Shigemasa - Sakai Ikkansai Shigemasa

Tantō

ByKasama Ikkansai Shigemasa
¥660,000
Ayakashi
Gendaitō
Daisho - by Kasama Ikkansai Shigemasa - Daisho: Sakai Ikkanzai ShigemasaDaisho - by Kasama Ikkansai Shigemasa - Daisho: Sakai Ikkanzai Shigemasa

Daishō

ByKasama Ikkansai Shigemasa
¥150,000
Aoi Art
Hozon
Katana - Hozon - by Kasama Ikkansai Shigemasa - Sakai Ikkansai ShigemasaKatana - Hozon - by Kasama Ikkansai Shigemasa - Sakai Ikkansai Shigemasa

Katana

ByKasama Ikkansai Shigemasa
¥950,000

Previously sold by Kasama Ikkansai Shigemasa

Aoi Art
Tokuho
Wakizashi - Tokuho - by Kasama Ikkansai Shigemasa - Sakai Ikkan-Sai ShigemasaWakizashi - Tokuho - by Kasama Ikkansai Shigemasa - Sakai Ikkan-Sai Shigemasa
Sold

Wakizashi

ByKasama Ikkansai Shigemasa
SOLD
Choshuya
Gendaitō
Tanto - by Kasama Ikkansai Shigemasa - Sakai Ikkan-Sai ShigemasaTanto - by Kasama Ikkansai Shigemasa - Sakai Ikkan-Sai Shigemasa
Sold

Tantō

ByKasama Ikkansai Shigemasa
SOLD
Choshuya
Gendaitō
Tanto - by Kasama Ikkansai Shigemasa - Japanese Sword for Sale | Ginza Choshuya | Signed Sakai Ikkan-sai Shigemasa with carving (kaō) - Auspicious day in midsummer, 1984Tanto - by Kasama Ikkansai Shigemasa - Japanese Sword for Sale | Ginza Choshuya | Signed Sakai Ikkan-sai Shigemasa with carving (kaō) - Auspicious day in midsummer, 1984
Sold

Tantō

ByKasama Ikkansai Shigemasa
SOLD
World Seiyudo
Hozon
Katana - Hozon - by Kasama Ikkansai Shigemasa - Ikkansai Sigemasa - Mukansa, NBTHK Hozon TokenKatana - Hozon - by Kasama Ikkansai Shigemasa - Ikkansai Sigemasa - Mukansa, NBTHK Hozon Token
Sold

Katana

ByKasama Ikkansai Shigemasa
SOLD
Samurai Museum
Hozon
Tanto - Hozon - by Kasama Ikkansai Shigemasa - Modern Japanese Sword Gendaito Tanto Signed by Shigemasa NBTHK Hozon CertificateTanto - Hozon - by Kasama Ikkansai Shigemasa - Modern Japanese Sword Gendaito Tanto Signed by Shigemasa NBTHK Hozon Certificate
Sold

Tantō

ByKasama Ikkansai Shigemasa
SOLD
Kusanagi
Hozon
Katana - Hozon - by Kasama Ikkansai Shigemasa - 無鑑査注文打ち一文字写し『尽忠報国一貫斎繁正』『昭和十八年六月日』保存刀剣Katana - Hozon - by Kasama Ikkansai Shigemasa - 無鑑査注文打ち一文字写し『尽忠報国一貫斎繁正』『昭和十八年六月日』保存刀剣
Sold

Katana

ByKasama Ikkansai Shigemasa
SOLD
World Seiyudo
Tokuho
Katana - Tokuho - by Kasama Ikkansai Shigemasa - Sakai Ikkansai Sigemasa - Tokubetsu Hozon TokenKatana - Tokuho - by Kasama Ikkansai Shigemasa - Sakai Ikkansai Sigemasa - Tokubetsu Hozon Token
Sold

Katana

ByKasama Ikkansai Shigemasa
SOLD
Giheiya
Gendaitō
Wakizashi - by Kasama Ikkansai Shigemasa - Mukansa Swordsmith Sakai Ikkansai Shigemasa - 45.14cm, with ShirasayaWakizashi - by Kasama Ikkansai Shigemasa - Mukansa Swordsmith Sakai Ikkansai Shigemasa - 45.14cm, with Shirasaya
Sold

Wakizashi

ByKasama Ikkansai Shigemasa
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
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NihontoWatch Mon

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Encyclopedia
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