[ Feature ]
Form : Nagamaki-naoshi form. Irori-mune. Mihaba is wide. Kasane is oridinal. From shinogi-suji toward mune-side, base iron are planed. Saki-zori attached. Fukura shows kareru(straightebed) state.
Engrave : Both on omote and ura sides, there are bo-"hi"s grooves.
Nakago : O-suri-age. Saki is kiri. Yasurimes are kiris. One out of two holes filled.
Jigane : Itame-hada. Mokumes mixed. Jinie attached. In total, they are becoming whitened.
Hamon : In notare patterns, gunomes and togari-bas blade mixed. The distiction between blade and hamon is not so obvious, tat is to say shizumi-gokoro state. Nie attached well.
Boushi : It runs in shallow notare-komi. Saki shape is sharp. It turns long.

[ Highlight ]　Hirosuke was a swordsmith of the Sunshu Shimada school active in the late Muromachi period (1336-1573), and along with Yoshisuke and Sukemune, is known as one of the three master swordsmiths of Shimada. These three swordsmiths can be seen in Koshu-uchi from Eiroku to around the first year of Tensho. The signature of a created swords is inscribed 'Shimada HIROSUKE in Koshu, owned by Taira no Ason Hara Mino no nyudo'. The name "Hara Mino" in the signature refers to a man who came from the Shimousa Chiba clan, received a character from Takeda Nobutora and called himself Toratane, and is mentioned in the Koyogunkan, and later belonged to the Odawara Hojo clan. The style of Kosuke's work is influenced by the Sue Seki and Sue Soshu styles, but he also seems to have admired swords created in the Nanbokucho period, and this sword has a broad body and a strong base with a powerful blade. The sword has a thick, heavy tip, and from the marks on the mune, it is thought that it was originally used as a nagamaki (long piece) in actual warfare. This sword was brought back from France in the Heisei era, and the preparation made around the late Edo period has been preserved in good condition. Please also enjoy the elaborate, unified and avant-garde sword guard, including the bowl-shaped sword guard and the scabbard and fuchi-gashira with scattered ancient characters.

Black wrinkled leather wrappings with scattered characters in a scabbard. There is no signature,
Menuki: Dragon crawling design,
Sword guard: ball-and-chase dragon design, there is no signature,
Kozuka : no signature.
Tsuka: white shark with black threads, morotsumami-maki
Kozuka-ho : signature "Nanki Yoshikawa Minamoto no Toshiyuki korewo tsukuru" (circa Bunka era, pupil of Inbana Toshimitsu).

[ Conditions ] The sword has multiple strike wounds on the ridge. Scratches on the sword's ridge have been regarded as 'honour scars' since ancient times, as remnants of brave warfare.