Rare item: Ko-Katana made by "Wiwingti Sword Supplies", long gone distributor/collector/enthusiast; fantastic handling and craftmanship! A beauty! : r/SWORDS
Scorpion Swords Tactical Ko Katana
What is a Ko-Katana? | Hanbon Forge
Tactical Ko Katana – Tactical Edge Blades
NINJA-KO KATANA IAITO 1 – The Samurai Connection
Ko-Katana vs Katana: Differences Between the Samurai Swords
Full Hand Forged Ko-Katana Japanese Samurai Sword with 1095 High Carbon Steel Blade | HanBon Forge
Cheness Yamakami (Mountain Guardian) Ko Katana Sword - YouTube