Katana Still Water Maru Blade Gentei Koshirae 若水 Oroshigane and mokume-hada（杢目肌） swirling woodgrain-like patterns

and mokume-hada（杢目肌） swirling woodgrain-like patterns appear in layers

Ō-kissaki (Large tip 大切先)

The folding process produces a refined Nashiji-hada (梨子地肌)

the Ishime technique creates a refined matte appearance with a subtle tactile texture

producing a hardened edge and a softer spine

Katana Still Water Maru Blade Gentei Koshirae 若水 Oroshigane and mokume-hada（杢目肌） swirling woodgrain-like patternsShinken () Still Water Katana: TangGu () Maru Blade () + TangGu () Gentei Koshirae () This practical style koshirae emphasizes structure and utility while maintaining traditional details. The saya is finished in black lacquer. Key fittingskoiguchi, kurigata, and kojiriare reinforced with water buffalo horn. The brown sageo is tied in a standard pattern. The tsuka is wrapped in brown ito over white natural samegawa (ray skin), with hishigami for a