AS24025 Katana: Unsigned (Shinshin-to)

Katana in Shirasaya

Signature: Mumei (Shinshinto 新々刀)

We divide 4 sections for each sword as Saijyo Saku, Jyojyo Saku, Jyo Saku and Regular Saku.
This sword is ranked as Jyo Saku among works attributed to Mumei.

Habaki: Single-layered copper.
Blade Length: 69.4 cm (27.3in)
Curvature: ¥1.5 cm (0.6in)
Mekugi Holes: 1
Width at Base (Motohaba): 2.91 cm (1.15 in)
Width at Tip (Sakihaba): 2.53 cm (1.00 in)
Thickness of Rim (Kasane): 0.89 cm (0.35 in)
Sword Weight: 865 grams
Era: Late Edo period
Shape: slightly wide and thick blade with big Kissaki.
Jigane: Ko-itame hada
Hamon: Nioi-deki clear Chojimidare with rounded Boshi.

Features: This piece is believed to be from the late Edo period based on its shape and craftsmanship.
The regularly arranged Chōji-midare hamon is flamboyant.

Aoi Art estimation paper: Whole Oshigata