Katana Black Wave Maru Blade Kuronami Koshirae 黒浪Clay Tempered Full Tang Shinken () Black Wave Katana: TangGu () Maru Blade () + TangGu () Kuronami Koshirae () This katana is hand forged (Tezukuri ) from high carbon modern steel () in the Maru zukuri () construction style. The blade is clay tempered (yaki ire ) to produce a gunome hamon (). The koshirae features a mokko gata tsuba () forged from tetsu (, iron) with a blackened finish () and an openwork ocean wave motif (). The fuchi kashira () are

Sakura Vine is an iron tsuba finished using a blackening process

with a hard steel jacket and softer core

The “Shihō-bishi” (四方菱) tsuba is a traditional iron sukashi tsuba featuring four interconnected diamond shapes arranged in perfect symmetry around the nakago-ana

This tsuba is crafted from iron and finished with a traditional Yaki-sabi (blackened) treatment

tightly wrapped with hishigami support

sea dragon) motifs

The edge displays a flowing notare (湾刃) hamon

and finished with blackened patina (煮黒仕上げ)

Handle Wrapping (Tsuka-maki 柄巻): Brown silk (or cotton) ito wrapped over hishigami (菱紙) in a diamond pattern (菱組)

Fuchi-Kashira (縁頭): Decorated with double Vajra (金剛杵) motifs

For centuries

Handcrafted Kanshitsu Black Ishime Lacquered Saya with Natural Horn Fittings｜Koshirae-Grade Finish