{"id":30722,"date":"2026-03-21T14:47:35","date_gmt":"2026-03-21T05:47:35","guid":{"rendered":"https:\/\/sword-auction.com\/?post_type=product&#038;p=30722"},"modified":"2026-03-21T14:47:35","modified_gmt":"2026-03-21T05:47:35","slug":"as25427-katanabizen-koku-ju-osafune-genbei-no-jo-sukesada-saku-kore-a-lucky-day-in-august-tensho-6-1578-60th-juyo-token","status":"publish","type":"product","link":"https:\/\/sword-auction.com\/en\/product\/30722\/as25427-katanabizen-koku-ju-osafune-genbei-no-jo-sukesada-saku-kore-a-lucky-day-in-august-tensho-6-1578-60th-juyo-token\/","title":{"rendered":"AS25427.  Katana:Bizen Koku Ju Osafune Genbei no Jo Sukesada Saku Kore. A lucky day in August, Tensho 6 (1578). (60th Juyo Token)"},"content":{"rendered":"<p>Ordering Number: AS25427.<\/p>\n<p>Katana in Shirasaya (60th Juyo Token).<\/p>\n<p>Signature: Bizen Koku Ju Osafune Genbei no Jo Sukesada Saku Kore.<br \/>\nA lucky day in August, Tensho 6 (1578).<br \/>\n\u5099\u524d\u56fd\u4f4f\u9577\u8239\u6e90\u5175\u885b\u5c09\u7950\u5b9a\u4f5c\u4e4b\u4e5f<br \/>\n\u5929\u6b63\u516d\u5e74\u620c\u5bc5\u516b\u6708\u5409\u65e5<\/p>\n<p>Sayagaki: written by Mr.Tanobe.<br \/>\nBizen Koku Osafune Genbei no Jo Sukesada.<br \/>\nWith a long 15-character signature and dated Tensho 6.<br \/>\nA lively double choji-midare is abundantly applied.<br \/>\nThe yakiba is well executed, fully demonstrating the smith\u2019s true ability, and the workmanship is excellent.<br \/>\nWritten by Tanzan Hen Do (kao), August of the year of Mizunoe-Tatsu.<\/p>\n<p>(We divide 4 sections for each sword as Saijyo Saku, Jyojyo Saku, Jyo Saku and Regular Saku).<br \/>\nThis work is ranked as Saijyo Saku for Bizen no Kuni Ju Osafune Genbei no Jo Sukesada.<br \/>\nHabaki: Gold-plated double habaki.<br \/>\nBlade Length: 73.6 cm (28.98 in).<br \/>\nCurvature: 1.97 cm (0.78 in).<br \/>\nMekugi Hole: 1.<br \/>\nWidth at Base (Motohaba): 3.20 cm (1.26 in).<br \/>\nWidth at Yokote: 2.19 cm (0.86 in).<br \/>\nThickness of rim (Kasane): 0.70 cm (0.28 in).<br \/>\nSword Weight: 825 g.<\/p>\n<p>Shape: Wide mihaba with solid kasane, bearing a long inscription \u201cBizen no Kuni Ju Osafune Genbei no Jo Sukesada Saku Kore \/ A lucky day in August, Tensho 6 (1578)\u201d.<br \/>\nJigane: Well-forged ko-itame hada, forming a refined steel with utsuri appearing.<br \/>\nHamon: Nie-deki, with choji-midare, becoming more vigorous toward the upper area, with an intensely midare boshi.<br \/>\nUpon close inspection, sunagashi and kinsuji are active.<\/p>\n<p>Features: Genbei no Jo Sukesada was the son of Yosazaemon Sukesada and produced swords for the Uragami clan, lords of Tenjinyama Castle.<br \/>\nAlthough the Sukesada school represents Sue-Bizen and produced many mass-made swords, works like this bearing a secular name and date were commissioned by powerful warlords, made carefully with high-quality steel, and exhibit especially high skill.<\/p>\n<p>Aoi Art\u2019s Comment: The choji-midare continues, becoming large and intensely midare near the kissaki, with the boshi also showing vigorous midare.<br \/>\nKinsuji works well within the hamon, and the overall workmanship is excellent with dynamic activity.<br \/>\nIn the late Muromachi period, renowned smiths such as Genbei no Jo Sukesada and Yosazaemon Sukesada produced swords for daimyo.<br \/>\nSuch notable works were naturally owned by daimyo or high-ranking samurai.<br \/>\nThis piece was likely carefully preserved as a daimyo-registered item.<br \/>\nGiven the excellent condition of the nakago, it is considered a sword once owned by a daimyo.<\/p>\n<p>Historical Background: Tensho 6 (1578) corresponds to the Azuchi-Momoyama period, a year of major upheaval across Japan as Oda Nobunaga advanced unification.<br \/>\nKey events include the death of Uesugi Kenshin and the ensuing Otate no Ran in Echigo, the defeat of Otomo Sorin at the Battle of Mimigawa, and the rebellion of Araki Murashige.<br \/>\nIn March, Uesugi Kenshin\u2019s sudden death led to a succession conflict between Uesugi Kagekatsu and Uesugi Kagetora.<br \/>\nNobunaga\u2019s most beloved woman is said to have been his consort Ikoma Kitsuno (Kyuan Keisho), who bore him heirs including Nobutada and Nobukatsu, as well as his daughter Tokuhime.<br \/>\nShe was admired for her beauty and gentleness but is said to have died young due to complications after childbirth.<\/p>\n<p>60th Juyo Token.<br \/>\nAoiArt estimation paper: Whole Oshigata<\/p>\n<p>Shipping fee is not included in the price.<\/p>\n<p><a href=\"https:\/\/www.aoijapan.com\/img\/sword\/2025\/25743-2.jpg\"><img decoding=\"async\" src=\"https:\/\/www.aoijapan.com\/img\/sword\/2025\/25743-2.jpg\" alt=\"\" width=\"30%\" height=\"30%\" \/><\/a><a href=\"https:\/\/www.aoijapan.com\/img\/sword\/2025\/25743-3.jpg\"><img decoding=\"async\" src=\"https:\/\/www.aoijapan.com\/img\/sword\/2025\/25743-3.jpg\" alt=\"\" width=\"30%\" height=\"30%\" \/><\/a><a href=\"https:\/\/www.aoijapan.com\/img\/sword\/2025\/25743-4.jpg\"><img decoding=\"async\" src=\"https:\/\/www.aoijapan.com\/img\/sword\/2025\/25743-4.jpg\" alt=\"\" width=\"30%\" height=\"30%\" \/><\/a><a href=\"https:\/\/www.aoijapan.com\/img\/sword\/2025\/25743paper-1.jpg\"><img decoding=\"async\" src=\"https:\/\/www.aoijapan.com\/img\/sword\/2025\/25743paper-1.jpg\" alt=\"\" width=\"40%\" height=\"40%\" \/><\/a><a href=\"https:\/\/www.aoijapan.com\/img\/sword\/2025\/25743paper-2.jpg\"><img decoding=\"async\" src=\"https:\/\/www.aoijapan.com\/img\/sword\/2025\/25743paper-2.jpg\" alt=\"\" width=\"40%\" height=\"40%\" \/><\/a><a href=\"https:\/\/www.aoijapan.com\/img\/sword\/2025\/25743sayagaki.jpg\"><img decoding=\"async\" src=\"https:\/\/www.aoijapan.com\/img\/sword\/2025\/25743sayagaki.jpg\n\" alt=\"\" width=\u201c40%\" height=\u201c40%\" \/><\/a><a href=\"https:\/\/www.aoijapan.com\/img\/sword\/2025\/25743_p.jpg\"><img decoding=\"async\" src=\"https:\/\/www.aoijapan.com\/img\/sword\/2025\/25743_p.jpg\n\" alt=\"\" width=\u201c70%\" height=\u201c70%\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ordering Number: AS25427. Katana in Shirasaya (60th Juyo Token). Signature: Bizen Koku Ju Osafune Genbei no Jo Sukesada Saku Kore. A lucky day in August, Tensho 6 (1578). \u5099\u524d\u56fd\u4f4f\u9577\u8239\u6e90\u5175\u885b\u5c09\u7950\u5b9a\u4f5c\u4e4b\u4e5f \u5929\u6b63\u516d\u5e74\u620c\u5bc5\u516b\u6708\u5409\u65e5 Sayagaki: written by Mr.Tanobe. Bizen Koku Osafune Genbei no Jo Sukesada. With a long 15-character signature and dated Tensho 6. A lively double choji-midare is [&#8230;]\n","protected":false},"featured_media":0,"template":"","meta":[],"class_list":["post-30722","product","type-product","status-publish","hentry","product_cat-katana-en","product_cat-masterpiece","product_cat-sword-en"],"_links":{"self":[{"href":"https:\/\/sword-auction.com\/en\/wp-json\/wp\/v2\/product\/30722","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sword-auction.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/sword-auction.com\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:attachment":[{"href":"https:\/\/sword-auction.com\/en\/wp-json\/wp\/v2\/media?parent=30722"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}