Considering the fact that 1953, Japanese swordsmiths have been permitted to function, but with significant limits: swordsmiths need to be accredited and provide a 5-year apprenticeship, and only licensed swordsmiths are authorized to make Japanese swords (nihonto), only two longswords a month are allowed to be made by each swordsmith, https://katana79123.salesmanwiki.com/8448147/getting_my_katana_to_work