Black Rayskin Wrapped Saya 黒鮫皮 Option:Imitation Rayskin features Kannon and a guardian

features Kannon and a guardian shishi in raised relief on the omote

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

while a softly flowing notare hamon (湾れ刃文) emerges through traditional clay tempering (覆土焼入れ)

The tsuba (鍔) is a hand-finished Ishime-ji iron guard (石目地鉄鍔)

crafted from gilded brass（黄銅鍍金） with a nanako-ji（魚子地） surface texture

Black Rayskin Wrapped Saya 黒鮫皮 Option:Imitation Rayskin features Kannon and a guardianHandcrafted Black Rayskin Wrapped Saya with Natural Horn FittingsKoshirae Grade Finish This handcrafted saya is a Black RayskinWrapped Saya (), featuring a deep black finish that adds distinctive texture and visual depth, providing a refined yet powerful alternative to conventional lacquer only saya. The black tone conveys strength, restraint, and formality, while preserving the understated aesthetics of traditional craftsmanship. The koiguchi