Katana Golden Mist Maru Blade Kinkasumi Koshirae 當康Clay Tempered Full Tang Shinken () Golden Mist Katana: TangGu () Maru Blade () + TangGu () Hantachi Kinkasumi Koshirae () The sword is mounted in a Hantachi style koshirae (). The blade is hand forged in Maru zukuri () style from proprietary high carbon steel for structural consistency and edge retention. It has no visible hada (). A straight Suguha hamonis formed through clay tempering (). The saya () features raden style lacquer ()a glossy black

Handle Wrapping (Tsuka-maki 柄巻): High-quality black silk (or cotton) tsuka-ito

and noble spirit

and a visible hamon（刃文） that reflects both performance and craftsmanship

blackened (煮黒) and engraved with wave motifs (波紋)

This handcrafted saya is a Green Rayskin–Wrapped Saya (緑鮫皮包鞘)

with a hardened outer steel layer and a softer core — the same method used in tamahagane blades for balanced cutting and resilience

Fine forging textures remain subtly visible beneath the finish

The koiguchi（鞘口）

This handcrafted saya is a Red Rayskin–Wrapped Saya (赤鮫皮包鞘)

ensuring precise proportions

The overall impression is luxurious yet understated—ideal for koshirae mounting

Sageo (Cord 下緒): Japanese-made Navy blue sageo tied in a traditional style