Ordering number: 23402
Katana: In Shirasaya (NBTHK Tokubetsu Hozon Token)
Inscription: Mumei (judged as Komihara)
無銘（古三原）
At our company, we categorize swords based on the craftsmanship quality into classifications such as “Highest Grade,” “Very Good,” “High Grade,” and “Regular.” This piece is ranked as a “High Grade” work in terms of its craftsmanship quality.
Polished
Habaki: Gold foiled double-layered habaki
Blade Length: 70.0 cm (27.56 inches)
Curvature: 1.5 cm (0.59 inches)
Peg Hole: 2 holes
Base Width: 3.18 cm (1.25 inches)
Tip Width: 2.37 cm (0.93 inches)
Thickness: 0.71 cm (0.28 inches)
Weight: 715 grams
Era: Early Nanbokucho Period
Shape: A large and well-maintained unsigned blade with a wide body and a sturdy thickness in the back. It features a slightly deep curvature and a fine double line extending down the edge. The jigane shows a mixture of itame and mokume grain pattern, with a faint white reflection. The hamon is a boil-like notare with a rounded return at the tip, exhibiting a slight yaki-tsume effect.
Special Features: “Komihara” refers to the smiths from Mihara in Bingo Province, who prospered from the late Kamakura period to the end of the Muromachi period. Particularly, works from the late Kamakura period to the Nanbokucho period are referred to as “Komihara.” Among them, Masatomo and Masahiro stand out, alongside Masamitsu, Masanobu, and Masakiyo. The Yamato region hosted various temples and many estates, leading to the creation of numerous blades with straight temper lines. This work exhibits subdued characteristics, and its hamon is also restrained, reflecting the traits of the Nanbokucho period.
From Aoi Art: This piece reflects the robust style of the Komihara tradition. The jigane beautifully displays a faint white reflection, and the shape of the hamon is distinctly reminiscent of the Nanbokucho period. It is a highly recommended piece.
NBTHK Tokubetsu Hozon Token paper
Aoi Art estimation paper: Whole Oshigata by Ayaka Tsuruta
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