Almost every sword I work on I see these marks. These are not swords mishandled in the USA, these are mishandled in Japan. This particular sword is in very old polish so has accumulated wear and tear from uchiko. But this heartbreak happens all the time. The saddest case for me was an incredible polish by Fujishiro on a Tokubetsu Juyo Soshu sword that was only a couple years old and the owner immediately ruined it by slamming uchiko into the sword creating these meteor strikes every 6 inches dow