A Very Rare Heianjo Nagayoshi Katana With NBTHK Certificate, Nagayoshi was The Teacher of Muramasa, Shirasaya has Honami sayagaki
山城國⻑吉 生中心在銘 時代延徳之頃 平安城珍品也 ⻑サ貮尺壹寸貮分有之 昭和癸丑歳秋誌之 本阿弥日洲「花押」
Yamashiro no Kuni Nagayoshi Ubu-nakago zaimei
Jidai Entoku no goro
Heianjō, chinpin nari
Nagasa ni-shaku issun ni-bu kore ari
Shōwa mizunoto-ushidoshi aki kore o shirusu Hon’ami Nisshū + kaō
Nagayoshi from Yamashiro Province Ubu-nakago and signed.
Production time around Entoku (1489–1492). Heianjō [School], rare work.
Blade length ~ 64.2 cm
Written by Hon’ami Nisshū in fall of the year of the ox of the Shōwa era (1973) + monogram.
5th gen., Eishō (永正, 1504-1521), Yamashiro – “Heianjō Nagayoshi saku” (平安城長吉作),
“Nagayoshi” (長吉), “Sanjō Nagayoshi saku” (三条長吉作), “Heianjō Nagayoshi” (平安城長吉), “Heianjō Nagayoshi
Sanshū no Kuni saku” (平安城長吉三州国作), “Yoshinori no ko Nagayoshi saku” (吉則子長吉作, “made by
Nagayoshi, son of Yoshinori”), “Sōshū-jū Nagayoshi” (相州住長吉), we know date signatures from the third year of
Bunki (文亀, 1503) to the 13th year of Eishō (1516), he mentions in his signatures that he was the son of Yoshinori
whereas probably the Bunmei-era (文明, 1469-1487) Sanjō Yoshinori (三条吉則) is meant, during his early years he also
worked in Mikawa, Ise, and in Sagami and there exists the tradition that whilst staying in Ise, he acted as master of
Muramasa (村正), his horimono show an influence of the Odawara-Sōshū school, that means they are somewhat finer and
more detailed as the horimono of earlier Heianjō works, relative many tantō are extant, they measure around 27.3 cm, have
a wide mihaba, and some sakizori, or are with 18.2 to 21.2 cm in length somewhat smaller, have a narrow mihaba, and a
thick kasane, the hamon is a suguha mixed with gunome-midare which gets wider towards their base or which tends to yahazu,
this interpretation reminds of the Sengo school (千子), his ō-gunome-midare on the other hand reminds of the Odawara Sōshū school,
the tang tends to a tanagobara and has a ha-agari kurijiri, the yasurime are kiri and when he signed with a naga mei that mentions the production site, he mostly applied katte-sagari yasurime, jō-saku