Thank you for such interesting post about the Japanese swords and the beautiful variety of their types with decorations of handles. I watched recently a documentary about the sharpest knives and of course it was a Japanese knife as well as Katana presented too, they showed how the process of creating goes on and still there are few masters whose work costs a fortune, but it is like in movies, they show how just the fallen feather was cut into two once it was landed on the sharp edge of the knife. Very educating post and it is obvious you made a research before putting the information together :)