In this clip I use a Nanbokuchō-period katana in poor polish to show how collectors spot quality in Japanese swords: reading the shape (sugata), checking steel texture (jihada), evaluating activity in the hamon, and separating superficial surface conditions from the value and quality that is inherently within the blade. #nihonto #japanesesword #katanacollector #koto #nanbokucho #kantei #hamon #jihada #swordcollecting #antiqueweapons #japanantiques #learnnihonto