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  3. (Katana)Nagasone Okimasa
    (刀 長曽袮興正)

Shimazu family tradition
Saijo_saku・Saijo_Ōwazamono
Katana Nagasone Okimasa
(Kotetsu_taikan_Listed・Nihonto_zuikan(shinto_edition_Listed))
Fittings: Shu_mijin_nuri_saya_Satsuma_uchigatana_koshirae
島津家伝来
最上作・最上大業物
虎徹大鑑所載・日本刀随感新刀編所載
刀　長曽袮興正
（附）朱微塵塗鞘薩摩打刀拵

Item NO.NO.K00187PricePlease contact us
PaperKatana(刀)NBTHK No,51Juyo Paper (公財)日本美術刀剣保存協会 51回重要刀剣指定書
Koshirae(拵)：NBTHK Hozon Paper （財）日本美術刀剣保存協会 保存刀装具鑑定書
CountryMusashi_no_koku(武蔵国)
PeriodEdo period（江戸時代延宝頃）,17th~18th　century
AccessoriesShu_mijin_nuri_saya_Satsuma_uchigatana_koshirae(朱微塵塗鞘薩摩打刀拵)・Shirasaya(白鞘)・Kin_kise_nijū_habaki(金着二重ハバキ)・Katana_bukuro(刀袋)
Each size＜Katana＞
Blade Length：72.95cm　2尺4寸強
Curve(Sori)：1.3cm
Top Width：2.1cm
(Sakihaba)
Bottom Width：3.05cm
(Motohaba)
Bottom Thickness：0.7cm
(Motokasane)
＜Koshirae＞
Overall length：104.5cm
Overall Curve：3.0cm
Tsuka length：25.5cm|10 3/64in
Tsuka Curve：0.2cm|5/64in
Saya length：78.4cm|30 55/63in
Saya Curve：1.7cm|43/64in
＜Tsuba＞
Vertical length：7.8cm |3 5/64in
Horizontal length：7.5cm |2 61/64in
Thickness：0.42cm|11/64in
Features＜Katana＞
Keijo：Shinogizukuri, iori_mune, mihaba_hirome, yaya_chōsun, moto_saki_no_haba-sa-tsuki, mihaba_no_warini_shinogi_haba_hiroku, kasane_atsuku, funbari_gokoro_ga_ari, sori_asaku _tsuki, chūkissaki_nobiru.
Kitae：Koitamehada_tsumi,chinie_atsukutsuki, ara_me_no _jinie-majiri,chikei_komaka_ni_hairu.
Hamon：Konotare_ni_guno-me,koguno-me,togari_ba_nado_majiri, tokorodokoro_guno-me_tsurete_midare, bubun-teki_ni_yaya_ko_moyō_tonari, koashi,yō_iri, nie-_suki, arame_no_nie_o_majiete,tokorodokoro_mura_to_nari, komaka_ni_kinsuji,sunagashi_kakari, nioikuchi_akarui.
Boshi：Omote: Asaku_notare, ura: Sugu-chō_ni_wazukani_notare_gokoro_o_obi, tomoni_Komaru_ni_yaya_fukaku_kaeri,saki_hakikakeru.
Nakago：Ubu,Saki_haagari_kurijiri, Yasurime_katte_sagari, Hole 1.
＜Koshirae＞
Huchi_kashira：Bunbōgu-zu（文房具図） Mumei( 無銘),Tetsu＿migakiji(鉄磨地), Suemon_zōgan_iroe(据紋象嵌色絵)　
Menuki：Bunbōgu-zu（文房具図）,　Shakudōji （赤銅地）,katachibori(容彫) ,kingin_iroe(金銀色絵)
Tsuba：Bunbōgu-zu（文房具図）Mumei（無銘）,Jūrokukakukei tetsu migakiji（十六角形鉄磨地）,Suemon_zōgan_iroe(据紋象嵌色絵), Mentori_kakumimi_koniku(面取角耳小肉), Ryō_hitsu_ana (shakudō_uma)(両櫃孔（赤銅埋）)
Kojiri：Gin_migakiji(銀磨地)
DetailsNagasone Okimasa（長曽袮興正）, as it is commonly believed, studied under Nagasone Kotetsu(長曽袮虎徹)and later became his adopted son, becoming the second generation successor to Kotetsu (長曽袮虎徹). The earliest existing one dates back to 13th year of Kanbun(寛文), and the last one is 3rd year of Genroku（元禄）. His skill is excellent, and he left behind a sword that could be mistaken for the first Kotetsu. It is likely that he made many substitute works for Kotetsu. This sword has mutual eyes and small mutual eyes on the small base, giving it a rosary blade style with the eyes interspersed here and there, and can be seen as the first Kotetsu. This is a masterpiece that shows the full effort of Nagasone Okimasa(長曽袮興正) in his work.
長曽袮興正は、通説に、長曽袮虎徹の門に学び、後に養子となって虎徹の２代目を継承した。現存するもので最も遡る年紀は、寛文13年であり、その最終は元禄３年である。技量は上手であり、初代虎徹と見間違えるほどの刀を残している。おそらく数多くの虎徹の代作を行っていたと思われる。長曽袮興正の作中渾身の出来を示した傑作である。
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