The world's most expensive samurai swords | Luxury Lifestyle Magazine
Steel Comparison - Which Steel to Choose for Your Samurai Sword?
How does the Damascus sword compare to the Katana? Is it superior or inferior to the katana? - Quora
TIL modern day Japanese swordsmiths are required by law to use traditional Katana forging techniques, despite the fact that modern day steel does not need to be folded multiple times. : r/todayilearned