NihontoWatchStock number:KA-030723Paper(Certificate): [N.B.T.H.K] Tokubetsu Hozon TokenCountry(Kuni)・Era(Jidai): Musashi(Tokyo)・Showa 32Blade length(Cutting edge): 78.78cmCurve(SORI): 1.7cmWidth at the hamachi(Moto-Haba): 3.51cmThickness at the Moto-Kasane: 0.81cmWide at the Kissaki(Saki-Haba): 2.70cmThickness at the Saki-Kasane: 0.60cmHabaki: Two parts, gold foil HabakiSword tang(Nakago): Unaltered, Sujikaiyasuri with Keshoyasuri file patternRivet Holes(Mekugiana): 1Shape(Taihai): Shinogizukuri, Iorimune, Chu-kissakiJigane(Hada): Temper patterns(Hamon): Temper patterns in the point(Bohshi): Registration Card: Tokyo 【Additional Information】 The swordsmith Tsukamoto Okimasa, real name Tsukamoto Shinpachi. Born in Taisho 4 in Koriyama City, Fukushima Prefecture. In Showa 8, he became a pupil of Kasama Ikkansai Shigetsugu, and later became his son-in-law. He used the same Ikkansai go as his master and father-in-law, Kasama Ikkansai Shigetsugu. He signed his mei as Okimasa, Tsukamoto Okimasa, Ikkansai Okimasa, Tsukamoto Ikkansai Okimasa, and others. In Showa 18, he was appointed as an Army Commissioned Swordsmith, and received numerous awards such as the Army Gunto Technology Encouragement Association Chairman's Award and the Navy Minister's Award, and was a master craftsman who reigned as the East Yokozuna in the modern swordsmith rankings. After the war, he received the Special Prize at the New Japanese Sword Exhibition, the Minister of Education Award, and other honors, and further success was expected of him, but he died young on June 27, Showa 35. He was 47 years old.
NihontoWatchOffered by World Seiyudo
This piece has sold
Get an email when a new Okimasa piece hits the market.
Machine translation from the shop's Japanese · may contain errors ·
Tokyo · around 1926-1989
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.
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.
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 siteNo cooling-off period or returns; refund only if the purchased sword is proven fake, capped at purchase price (excludes commission sales, accessories, auction items).