Fine Raden Lacquered Saya 細螺鈿塗 Sanmai A black sageo (下緒) is

A black sageo (下緒) is tightly woven

Saya (Scabbard 鞘): Katana-style (打刀拵) scabbard with buffalo horn koiguchi and kurigata

also made from blackened white copper

This handcrafted saya features a Shuro Raden-nuri (棕櫚螺鈿塗) finish—an exquisite technique combining the fibrous texture of Shuro-nuri (棕櫚塗) with luminous shell inlay (raden)

The black tone conveys strength

Fine Raden Lacquered Saya 細螺鈿塗 Sanmai A black sageo (下緒) isHandcrafted Fine Raden Lacquered Saya with Natural Horn FittingsKoshirae Grade Finish This handcrafted saya features a fine raden lacquer finishan intricate surface treatment using micro particles of luminous shell inlay (raden) scattered densely across a black lacquer base. The result is a refined, almost celestial shimmer, with countless iridescent fragments that catch the light and shift between shades of silver, blue, and green, evoking the image