Its hamon. or temper line, distinguishes a samurai’s strong yet razor-sharp katana.
Muneietsu |medium sled)
Kawaietsu (folded sled)
Shmletsu (soft iron)
Halotsu (fvard sled)
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Hamon Tsuba
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Tsuka
The fsi/tw (hand g
почему минус непонятно
а о катана это dai-katana?