Kanefusa is a name that recurs in Sue-Seki from the middle of the Muromachi period into shintō times. According to the indexes, the smith who signs “Kanefusa saku” was a grandson of the first Kaneyoshi and the eldest son of the Kanefusa of the Eikyō era; he worked in the late fifteenth century, around the Bunmei era, with works dated Bunmei 10 and 16. The blade is shinogi-zukuri with iori-mune, a broad mihaba, sakizori and an extended chū-kissaki: 76.2 cm nagasa, 1.6 cm sori, 3.22 cm motohaba and 923 g in weight. The hada is a varied itame with ji-nie and shirake-utsuri; the hamon a gunome with togari and chōji, plentiful ko-ashi and yō, nie and tobiyaki; the bōshi differs on each face. The tang is suriage, with a lightly cut kuri-jiri end, katte-sagari yasurime except on the shinogi-ji of the reverse, which is suji-kai, and three holes. What sets the ensemble apart is its double certification: NBTHK Tokubetsu Hozon for the blade (27 August 2021) and NBTHK Hozon tōsōgu for the 108 cm han-tachi koshirae (2 April 2021), with a saya in black ishime-ji lacquer, mantis-on-autumn-grasses menuki and a tsuka covered in aya cloth with flat nandō-coloured tsukamaki. A shirasaya with cover and a one-piece silver habaki are included.