Katana Silent Wave Folded Steel Blade Kuronami Koshirae 玄濤Clay Tempered Full Tang Shinken () Silent Wave Katana: TangGu () Folded Steel Blade () + TangGu () Kuronami Koshirae () This katana is forged in Maru zukuri () construction from hand forged and folded high carbon steel (). The surface reveals a refined masame hada () grain, while the edge displays a flowing notare () hamon formed through traditional clay tempering ( Fukutsuchi Yakiire). The blade is shaped in shinogi zukuri () geometry with an iori

and blue that shifts with the light

while the intersecting cross motifs add visual depth and architectural precision

featuring a classic four-lobed silhouette with an openwork axe motif

The openwork construction allows light and shadow to interact across the surface

and elegant—ideal for mounting as part of a complete koshirae

black base with luminous shell inlay particles that shimmer like starlight

displaying fine straight grains mixed with swirling woodgrain patterns through orikaeshi-tanren（折返し鍛錬）folding

The tsuka (柄) is wrapped in white ito (白柄糸) over natural samegawa (本鮫皮) ray skin

Fuchi-Kashira (縁頭): White copper fittings with engraved wave (海浪) motifs

The saya (鞘) is finished in palm bark-style lacquer (棕櫚塗)

a design with Tokugawa（徳川）symbolism

evoking the movement of autumn grasses under a gentle breeze