Katana Golden Ripple Sanmai Blade Koran Koshirae 金漣Clay Tempered Full Tang Shinken () Golden Ripple Katana: TangGu () Sanmai Blade () + TangGu () Koran Koshirae () This katana, named Golden Ripple, is mounted in Koran Koshirae. The blade is forged in Sanmaiconstruction, with a hardened steel core between softer layers for strength and resilience. It is clay tempered, creating a Notare style hamon). The surface shows Masame hada mixed with Itame hada, combining straight and woodgrain patterns that

Samegawa (Ray Skin 柄鮫): Natural white samegawa（本鮫皮 / ray skin）under the tsuka-maki

hand-carved with a wave and dragon design (涛龍片切彫)

Tsuba (Sword Guard) “Shihō-bishi”｜Hand-Polished Openwork Iron Geometric Diamond Motif with Copper Sekigane and Black Patina Finish

A black sageo (下緒) is tightly woven

refined in-house using traditional methods（伝統的手法による自家製鋼材）

This katana is forged in Maru-zukuri (丸造) construction from hand-forged and folded high-carbon steel (折り返し鍛錬高炭素鋼)

woven in traditional style

featuring a distinctive gold-speckled texture

The menuki (目貫) are made of white copper and feature delicate floral designs (花卉文)

The tsuka (柄) is wrapped in green ito over aged yellow samegawa (鮫皮)

The Sakura fuchi-kashira set is crafted from white copper and finished with a finely sculpted cherry blossom relief motif

earthy character while preserving the refined aesthetics of traditional Japanese craftsmanship