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Sakai Ikkansai Shigemasa Daito W/ Bonji And Boho


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Sword Information:

Type: Katana

Sugata: Shinogi Zukuri

Mei: Sakai Ikkansai Shigemasa

Date/Era: A lucky day in March, 1974

School/Den: Kasama Ikkansai Shigetsugu Mon

Tradition: Soden-Bizen

Authentication/Papers: NTHK Kanteisho


Sword Details:

Nagasa: 67.1 cm

Mihaba: 3.4 cm

Nakago Jiri: Ubu, Kurijiri

Yasurime: Kiri

Mune: Iori

Jihada: Itame

Hamon: Active Choji Midare, with Sunagashi and Kinsuji

Boshi: Komaru, w/ Short Turnback

Smith Information:


- Toko-Taikan: 2 Million Yen

- Gendai Tosho Ninki Banzuke: East Block, Maegashira

Smith Details:

Shigemasa (繁政), Shōwa (昭和, 1926-1989), Tōkyō – „Shigemasa“ (繁正), „Sakai Ikkansai Shigemasa“ (酒井一貫斎繁正), „Tōtō Jōhoku

ni oite Sakai Ikkansai Shigemasa kinsaku“ (東都於城北酒井一貫斎繁正謹作), „Sakai Ikkansai Shigemasa“ (酒井一貫斎繁政), „Sakai

Shigemasa hori-dōsaku“ (酒井繁政彫同作), civilian name „Sakai Hiroshi“ (酒井寛), he was born on August 19th 1905 as third son of Sakai

Yasujirō (酒井安次郎), the younger brother of Miyaguchi Shigetoshi (宮口繁寿), in Shizuoka, in 1925 he started his apprenticeship as a

swordsmith under Kasama Shigetsugu (笠間繁継) and became independent in 1932, he signed his name first with the characters (繁正),

during World War II he worked for the forges „Nihontō-tanrenkai“ (日本刀鍛錬会) and „Ōkura-Nihontō-tanrenjo“ (大倉日本刀鍛錬所),

later he lived in Tōkyō´s Itabashi district (板橋), as his master Shigetsugu he too was an excellent horimono carver, he died 1995 at the age

of 91, during World War II he forged ten tantō for Admiral Yamamoto Isoroku (山本五十六, 1884-1943) who rewarded several persons

with them for their merits in assisting the attack on Pearl Harbor which was also co-planned by Yamamoto


From Markus Sesko's, "Index of Japanese Swordsmiths"


Photo Credit: Fred Weissberg




2% of the sale goes to the board, if sold here.  I will offer a 2 day inspection period and allow returns, if I have misrepresented the blade in any way.












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