Samurai Humpday Hee-Yah!
This might be a softball question...especially if you folks are PBS watchers, but here goes:
Hand crafted Samurai swords require master craftsmanship. Only the finest swords were acceptible and then only the best of the best were suitable for the highest ranking Samurai. Blade construction and sharpness were tested and measured to determin the quality of the blades. What were the testing methods and what rating was given to the best blades?
Tom