AS23191 Dai Sho :Dai : Norimitsu (Not Guaranteed)、Sho : Bizen Osafune jū Yokoyama Sukenaga.(NBTHK Tokubetsu Kicho Token)

Dai Sho :

———————

Dai : Katana in Koshirae

Signature: Norimitsu (Not Guaranteed).
則光(無保証)

(We divide 4 sections for each sword as Saijyo Saku, Jyojyo Saku, Jyo Saku and Regular Saku.)
This work is ranked as Regular Saku among the works attributed to Norimitsu (not guaranteed).
Habaki: double copper with gold decoration.
Blade Length: 2 shaku 2 sun 6 bu 5 rin – 68.6 cm (27.01 in).
Curvature: 4 bu 0 rin – 1.21 cm (0.48 in).
Mekugi Holes: 3.
Width at Base (Motohaba): 2.86 cm (1.13 in).
Width at Tip (Sakihaba): 1.87 cm (0.74 in).
Thickness of Rim (Kasane): 0.58 cm (0.23 in).
Sword Weight: 620 g.
Era: Late Muromachi period.
Shape: A katana with standard width and thickness, with curvature and an extended kissaki.
Jigane: Clearly visible hada.
Hamon: Nie deki, ko-midare mixed with togari-ba, with fine kinsuji, boshi midare-komi.

Features: Although signed “Norimitsu,” it is unlikely to be genuine.

Koshirae:
Tsuba: Vertical oval shakudo migaki-ji tsuba with the crest of Honda Tachi Aoi carved and gold inlaid.
Fuchikashira: Shakudo migaki-ji with Honda Tachi Aoi crest carved and gold inlaid.
Saya (Scabbard): Green and black kawari-nuri saya.
Menuki: Shakudo base with Honda Tachi Aoi crest carved and gold inlaid.

———————

Sho : Wakizashi in Koshirae(NBTHK Tokubetsu Kicho Token)

Signature: Bizen Osafune jū Yokoyama Sukenaga.
備前長船住横山祐永

(We divide 4 sections for each sword as Saijyo Saku, Jyojyo Saku, Jyo Saku and Regular Saku.)
This work is ranked as Jyojyo Saku among the works of Bizen Osafune jū Yokoyama Sukenaga.
Habaki: single copper with gold decoration.
Blade Length: 1 shaku 5 sun 7 bu 5 rin – 47.8 cm (18.82 in).
Curvature: 4 bu – 1.21 cm (0.48 in).
Mekugi Holes: 1.
Width at Base (Motohaba): 3.05 cm (1.20 in).
Width at Tip (Sakihaba): 2.10 cm (0.83 in).
Thickness of Rim (Kasane): 0.90 cm (0.35 in).
Sword Weight: 425 g.
Era: Edo period, around Bunsei era.
Shape: A wakizashi with wide mihaba, deep curvature, normal kissaki, and a solid appearance.
Jigane: Ko-itame hada, very well forged, forming a beautiful jigane.　
Hamon: From the hamachi, suguha; then nioi-deki with ko-gunome chōji-midare resembling chrysanthemum petals, returning in maru boshi.

Features: Yokoyama Sukenaga was the son of Yokoyama Sukehei, and in Tenpō 4 (1833) received the title Kaga no Suke.
He also inscribed “Tomoari gojūroku-dai mago” (56th generation descendant of Tomoari) on some works.
He created distinctive and flamboyant chōji hamon reminiscent of chrysanthemum petals, a style inherited by the second-generation Sukenaga and by Sukeheikane.
This piece resembles the work of the second-generation Kawachi no Kami Kunisuke.

Koshirae:
Tsuba: Vertical oval shakudo migaki-ji tsuba with Honda Tachi Aoi crest carved and gold inlaid.
Fuchikashira: Shakudo migaki-ji with Honda Tachi Aoi crest carved and gold inlaid.
Saya (Scabbard): Green and black kawari-nuri saya.
Menuki: Shakudo base with Honda Tachi Aoi crest carved and gold inlaid.
Kōgai: Shakudo base with Honda Tachi Aoi crest carved and gold inlaid.
Kozuka: Shakudo base with Honda Tachi Aoi crest carved and gold inlaid.
Kogatana included.

———————

Wakizashi: NBTHK Tokubetsu Kicho Token.
Aoi Art estimation paper : whole Oshigata.