{"id":30088,"date":"2026-02-01T15:32:29","date_gmt":"2026-02-01T06:32:29","guid":{"rendered":"https:\/\/sword-auction.com\/product\/30088\/as22572-%e8%84%87%e5%b7%ae%ef%bc%9a%e5%9b%ba%e5%b1%b1%e5%ae%97%e6%ac%a1-%e5%a4%a9%e4%bf%9d%e5%8d%81%e4%b8%89%e5%b9%b4%e4%ba%8c%e6%9c%88%e6%97%a5%e7%89%b9%e5%88%a5%e4%bf%9d%e5%ad%98%e5%88%80%e5%89%a3\/"},"modified":"2026-02-01T15:33:01","modified_gmt":"2026-02-01T06:33:01","slug":"as22572-%e8%84%87%e5%b7%ae%ef%bc%9a%e5%9b%ba%e5%b1%b1%e5%ae%97%e6%ac%a1-%e5%a4%a9%e4%bf%9d%e5%8d%81%e4%b8%89%e5%b9%b4%e4%ba%8c%e6%9c%88%e6%97%a5%e7%89%b9%e5%88%a5%e4%bf%9d%e5%ad%98%e5%88%80%e5%89%a3","status":"publish","type":"product","link":"https:\/\/sword-auction.com\/en\/product\/30088\/as22572-%e8%84%87%e5%b7%ae%ef%bc%9a%e5%9b%ba%e5%b1%b1%e5%ae%97%e6%ac%a1-%e5%a4%a9%e4%bf%9d%e5%8d%81%e4%b8%89%e5%b9%b4%e4%ba%8c%e6%9c%88%e6%97%a5%e7%89%b9%e5%88%a5%e4%bf%9d%e5%ad%98%e5%88%80%e5%89%a3\/","title":{"rendered":"AS22572 Wakizashi\uff1aKoyama Munetsugu Dated: February, Tenp\u014d 13 (1842)(NBTHK Tokubetsu Hozon Token) (Tsuba: NBTHK Hozon Tosogu)"},"content":{"rendered":"

Ordering Number: AS22572<\/p>\n

Wakizashi in Shirasaya with Koshirae (NBTHK Tokubetsu Hozon Token) (Tsuba: NBTHK Hozon Tosogu)<\/p>\n

Signature: Koyama Munetsugu
\nDated: February, Tenp\u014d 13 (1842)
\n\u56fa\u5c71\u5b97\u6b21
\n\u5929\u4fdd\u5341\u4e09\u5e74\u4e8c\u6708\u65e5<\/p>\n

Shinshinto \u2013 Jyojyo Saku \u2013 Musashi Province
\nWe divide 4 sections for each sword as Saijyo Saku, Jyojyo Saku, Jyo Saku and Regular Saku.
\nThis work is ranked as Jyojyo Saku among works by Koyama Munetsugu.
\nHabaki: Single-layered, made of shaku-d\u014d
\nBlade Length: 43.94 cm (17.30 in)
\nCurvature: 1.21 cm (0.48 in)
\nMekugi Hole: 1
\nWidth at Base (Motohaba): 2.93 cm (1.15 in)
\nWidth at Tip: 2.25 cm (0.89 in)
\nThickness of Rim (Kasane): 0.70 cm (0.28 in)
\nSword Weight: 475 g
\nEra: Late Edo period, Tenp\u014d 13 (1842)
\nShape:A healthy wakizashi with standard width and thickness, slightly deeper curvature, and an extended kissaki, showing the presence of a ubuha (unsharpened original blade section).
\nJigane:A refined mixture of mokume and small itame, with visible chikei, producing a high-quality surface.
\nThe shinogiji consists mainly of small itame mixed with a hint of masame.
\nHamon:Made in ko-nie-deki with a combination of ch\u014dji-midare and gunome-midare.
\nThe boshi becomes midare and returns in a small rounded manner (komaru).<\/p>\n

Features: Koyama Munetsugu was born in Shirakawa, \u014csh\u016b, and was the younger brother of Koyama Muneyuki.
\nHe was a disciple of Kat\u014d Tsunaie and used the name Koyama S\u014dbei.
\nLater, he moved to Edo and became a swordsmith for the Kuwana Domain.
\nHe resided in Azabu Nagasaka and Yotsuya Samonch\u014d.
\nHe received instruction from Yamada Asaemon in order to enhance the cutting ability of his swords.
\nHe was granted the title Bizen-no-Suke in K\u014dka 2 (1845) and continued his work into the early Meiji period, retiring with the Hait\u014drei (sword prohibition decree).<\/p>\n

Koshirae:
\nTsuba: NBTHK Hozon Tosogu, unsigned (Ky\u014d Kinko style).
\nMokko-gata shape, made of shaku-d\u014d with high relief carvings of waves and dragons, finished with gold-colored iroe. A heavy and solid work.
\nFuchikashira: Shaku-d\u014d with plum motifs, decorated with iroe using suaka and gold.
\nSaya: Black gloss lacquer saya with grooves.
\nMenuki: Two lions carved in high relief, with gold-colored iroe.
\nKozuka: Shaku-d\u014d with stone-like texture, carved with a human figure, finished with gold iroe.
\nComes with small utility knife (kogatana).<\/p>\n

Aoi Art\u2019s Comment: Koyama Munetsugu was a swordsmith known for producing flawless blades.
\nIt is believed he would discard any blade with flaws immediately.
\nHe dedicated himself to the Bizen-den tradition and did not work in the S\u014dsh\u016b-den style, which reflects his focused character.
\nHe became the official smith for the Kuwana Domain after moving to Edo, where he resided in Azabu Nagasaka and Yotsuya Samonch\u014d.
\nHe is said to have received instruction from Yamada Asaemon to enhance his swords’ cutting performance, and thus many of his works are associated with test cutting.
\nHe strictly adhered to Bizen-den, producing dignified swords in that tradition.
\nInterestingly, swords forged during the Tenp\u014d era (like this one, made in Tenp\u014d 13) often display excellent craftsmanship, and Koyama Munetsugu is no exception.
\nIt is curious why so many outstanding blades were produced during this specific period.
\nThis particular piece, forged in the Tenp\u014d era, is an excellent example, and its koshirae is fitted with fine quality kodogu.
\nHighly recommended.<\/p>\n

Historical Background: The Tenp\u014d era in the late Edo period was a time when high-quality steel may have been produced, and demand for Japanese swords increased.
\nConsequently, many swords of excellent quality were made.
\nIt’s almost puzzling how consistently high the craftsmanship was during this time.<\/p>\n

NBTHK Tokubetsu Hozon Token Certificate
\nTsuba: NBTHK Hozon Tosogu Certificate
\nAoi Art estimation paper and whole oshigata <\/p>\n

Please note: the price does not include the shipping fees.<\/p>\n

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

Ordering Number: AS22572 Wakizashi in Shirasaya with Koshirae (NBTHK Tokubetsu Hozon Token) (Tsuba: NBTHK Hozon Tosogu) Signature: Koyama Munetsugu Dated: February, Tenp\u014d 13 (1842) \u56fa\u5c71\u5b97\u6b21 \u5929\u4fdd\u5341\u4e09\u5e74\u4e8c\u6708\u65e5 Shinshinto \u2013 Jyojyo Saku \u2013 Musashi Province We divide 4 sections for each sword as Saijyo Saku, Jyojyo Saku, Jyo Saku and Regular Saku. This work is ranked as […]\n","protected":false},"featured_media":0,"template":"","meta":[],"class_list":["post-30088","product","type-product","status-publish","hentry","product_cat-wakizashi-en","product_cat-sword-en"],"_links":{"self":[{"href":"https:\/\/sword-auction.com\/en\/wp-json\/wp\/v2\/product\/30088","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=30088"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}