[ Feature ]
Form : Shinogi-zukuri. Iori-mune. Mihaba is wide. Kasane is thick. Shallow sori attached. Chû-kissaki shortned form.
Nakago : Ubu. Yasurimes are ô-suji-kais. Saki is kuri-jiri. One hole.
Jigane : Itame-hada is more or less noticeable. Mokumes mixed. Rich jinie attached. Chikei appeared.
Hamon : It runs in notare, gunomex mixed. Ashis appeared. Nioikuchi is not so noticeable. Rich nie attached. Larger size nie mixed. Sunagashi appeared frequently.
Boushi : It runs in sugu, nie attached. And it closes in haki-kake. Saki is komaru. It tunrs relatively long.
黒蝋色塗鞘脇差拵 : 老松招福図鐔(赤銅魚々子地鋤出高彫金色絵)、伊勢海老図目貫(銅地金鍍金)、波濤図縁頭(赤銅地金色絵)
Koshirae : "kuro-ro-iro-nuri-zaya wakizashi koshirae". Tsuba : "Oi-matsu shô-fuku-zu"(shaku-dô nanako-ji, suki-dashi, taka-bori, kin-iroe). Menuki : "Ise-ebi-zu"(dô-jigane to-kin). Fuchi-gashira : "Ha-tô-zu"
It was dominant in the past that "大和守安定"(Yamato-no-kami Yasusada) had their home province in Echizen. But today, it is well known that they come from Kishû Sekidô school. There are sufficient grounds for believing it. Specifically, the book titled "Shintô-bengi"(新刀弁疑) mentioned that Yasusada belonged to Sekidô family and described "Yasusada Kishû"(安定 紀州). Additionally, there are not a few swords signature using family name "Tomita"(冨田) or "Tobita"(飛田) as same as Tameyasu(為康) or Yasuhiro(康広) of Kishû Sekidô school. The swords with signature "Kishû Wakayama-jû Yasuhiro tsukuru Yamato Daijô Yasusada saku"(紀州和歌山住安広造 大和大掾安定作) remain. Taking it account the sword with signature "Yamato-no-kami Yasusada gyô-nen go-jyû-san sai Kanbun jyû(10) reki hachi-gatsu(august)-hi"(大和守安定 行年五十三歳之 寛文十暦八月日), he was born in "Genwa 4"(元和四). There is Yamano family's Yasusada sword with "kin-zô-gan setsudan mei"(cut off sigature in gold inlay)(金象嵌切断銘). The opinion that "Izumu-no-kami Kaneshige"(和泉守兼重) was Yasusada's teacher, who had common style and "nakago-shitate"(finish of nakago forming.
The signature of Yamato-no-kami Yasusada teach us a lot of information on swordsmith and his creation for current generation.
Referenced materials : "Nihon-tô meikan"(日本刀銘鑑), ISHII Masakuni, supervised HONMA Kunzan (Yuzankaku publishing), Heisei 15(2003), "Dai-go-jyu-kai jyû-yô tôken zufu"(第五十回 重要刀剣図譜), NBTHK, Heisei 16(2004)
[ Highlight ]
Hamon in squared notare, gunomes mixed and rich nie attached.
Jingane, which mixed mokume on itame, rich jinie attached. And chikei twined closely.
Strong hadame can be observed.
The form in wide mihaba and thick kasane shows its powerfulness.
The nakago shape, which has tightened tip, is specific. Koshirae fittings are well coordinated by combination of lucky motifs. It shows ambitiohs atmosphere sail out to golden shinning wide expanse of ocean. This sword has been handed down as importand gurdian sword.
[ Conditions ] There is a small "sumigomori" atmosphere scar on "hiraji", in the middle of blade face side, a little upper part. However, it is not affect on appreciation. There is tiny rust.
