{"id":30650,"date":"2026-03-17T12:54:49","date_gmt":"2026-03-17T03:54:49","guid":{"rendered":"https:\/\/sword-auction.com\/?post_type=product&p=30650"},"modified":"2026-03-17T12:57:12","modified_gmt":"2026-03-17T03:57:12","slug":"as25797-katana%ef%bc%9amino-koku-okachiyama-sanroku-junin-fujiwara-nagasada-august-1866-made-at-aoyama-in-edo-nbthk-tokubetsu-hozon-token","status":"publish","type":"product","link":"https:\/\/sword-auction.com\/en\/product\/30650\/as25797-katana%ef%bc%9amino-koku-okachiyama-sanroku-junin-fujiwara-nagasada-august-1866-made-at-aoyama-in-edo-nbthk-tokubetsu-hozon-token\/","title":{"rendered":"AS25797 Katana\uff1aMino Koku Okachiyama Sanroku Junin Fujiwara Nagasada. August, 1866. Made at Aoyama in Edo. (NBTHK Tokubetsu Hozon Token)"},"content":{"rendered":"

Ordering Number: AS25797<\/p>\n

Katana in Shirasaya (NBTHK Tokubetsu Hozon Token).<\/p>\n

Signature: Mino Koku Okachiyama Sanroku Junin Fujiwara Nagasada.
\nAugust, 1866.
\nMade at Aoyama in Edo.
\n\u7f8e\u6fc3\u56fd\u5fa1\u52dd\u5c71\u9e93\u4f4f\u4eba\u85e4\u539f\u6c38\u8c9e
\n\u6176\u61c9\u4e8c\u5e74\u516b\u6708\u65e5
\n\u65bc\u6c5f\u6238\u9752\u5c71\u9020\u4e4b<\/p>\n

Sayagaki: Signature: Minokuni Okachiyama Sanroku Junin Fujiwara Nagasada.
\nAugust, 1866, made at Aoyama in Edo.
\nListed in Shinshinto Taikan, a retained smith of the Kishu Tokugawa family.
\nA superb and healthy blade among his Jyopjyo(\u0909\u0924\u094d\u0915\u0943\u0937\u094d\u091f) works.
\nLength: 2 shaku 5 sun.
\nSeizan inscription.<\/p>\n

(We divide 4 sections for each sword as Saijyo Saku, Jyojyo Saku, Jyo Saku and Regular Saku).
\nThe workmanship of this piece is ranked as Jyojyo Saku for Nagasada.
\nHabaki: Gold-plated double habaki.
\nBlade Length: 75.76 cm (29.83 in).
\nCurvature: 1.52 cm (0.60 in).
\nMekugi Hole: 2.
\nWidth at Base (Motohaba): 3.28 cm (1.29 in).
\nWidth at Yokote: 2.15 cm (0.85 in).
\nThickness of rim (Kasane): 0.68 cm (0.27 in).
\nSword Weight: 785 g.
\nShape: Wide mihaba with thick kasane, extended kissaki, and slightly deep curvature, forming an \u0909\u0924\u094d\u0915\u0943\u0937\u094d\u091f and well-balanced shape.
\nJigane: Fine ko-itame hada tightly forged with ji-nie and chikei, resulting in a refined steel surface.
\nHamon: Nie-deki, gunome-midare with kinsuji activity. The boshi has a deep nioiguchi and is sufficiently long.<\/p>\n

Features: Excerpt from Shinshinto Taikan.
\nNagasada descended from the Akasaka Senjuin lineage of Mino Province and studied within that school.
\nHe was born in Omotesa Village, Tarui Town, Fuwa District, present-day Gifu Prefecture, with the family name Matsui and given name Osamu.
\nHis maternal hometown was Tamura Town, near Tamura Castle.
\nThe Matsui family is said to have originated from Ise Province, and due to this connection, he occasionally traveled to Tamamaru in Ise to forge swords.
\nAlthough he did not reside in Tamamaru, he is said to have lived in Okachiyama.
\nDuring the historic Battle of Sekigahara, Tokugawa Ieyasu established his headquarters there and commanded his army.
\nBecause victory was achieved at that location, it came to be called Okachiyama, and Nagasada adopted the name \u201cOkachiyama Sanroku\u201d as he forged swords nearby.
\nDue to his service on the Tokugawa side in that battle tradition, he became an officially retained smith of the Tokugawa family.
\nFrom the Koka to Kaei eras (1844\u20131854), Nagasada went to Edo and studied under Taikei Naotane, establishing a forge in Aoyama and producing swords known as \u201cAoyama-uchi.\u201d
\nHe is described as a sincere and earnest individual, and his works show no signs of careless production, reflecting his integrity.
\nMany of his works exhibit fine shinogi-ji with ko-itame tendencies and a Soshu-style influence, and some have been overly polished and mistaken for Koto blades, which is regrettable.
\nHis active period spans from around the Koka era to the spring of 1869, and he passed away at the age of 61.<\/p>\n

Aoi Art\u2019s Comment: This sword has been beautifully and elegantly polished.
\nA considerable amount of original ha remains, clearly indicating its excellent preservation.
\nThe polish shows a splendid black and bluish tone.
\nWe highly recommend acquiring this masterpiece.<\/p>\n

NBTHK Tokubetsu Hozon Token.
\nListed in Shinshinto Taikan (page 263).
\nAoiArt estimation paper: Whole Oshigata.<\/p>\n

\uff0aShipping fee is not included in the price.<\/p>\n

\"\"<\/a>\"\"<\/a>\"\"<\/a>\"\"<\/a>\"\"<\/a>\"\"<\/a>\"\"<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Ordering Number: AS25797 Katana in Shirasaya (NBTHK Tokubetsu Hozon Token). Signature: Mino Koku Okachiyama Sanroku Junin Fujiwara Nagasada. August, 1866. Made at Aoyama in Edo. \u7f8e\u6fc3\u56fd\u5fa1\u52dd\u5c71\u9e93\u4f4f\u4eba\u85e4\u539f\u6c38\u8c9e \u6176\u61c9\u4e8c\u5e74\u516b\u6708\u65e5 \u65bc\u6c5f\u6238\u9752\u5c71\u9020\u4e4b Sayagaki: Signature: Minokuni Okachiyama Sanroku Junin Fujiwara Nagasada. August, 1866, made at Aoyama in Edo. Listed in Shinshinto Taikan, a retained smith of the Kishu Tokugawa family. […]\n","protected":false},"featured_media":0,"template":"","meta":[],"class_list":["post-30650","product","type-product","status-publish","hentry","product_cat-katana-en","product_cat-sword-en"],"_links":{"self":[{"href":"https:\/\/sword-auction.com\/en\/wp-json\/wp\/v2\/product\/30650","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=30650"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}