Hi guys,   Trying to gather some reliable infos about hamon and forging method of Navy showa-to made with anti-rust steel at the Tenshozan Tarenjo.   From what I have read and saw, the swords made at the Tenshozan Tarenjo seems of better quality than those made at he Toyokama arsenal. Early ones are of course usually better.   Most I have seen online (never handle any of them) look to have no hamon anymore once "cleaned", and etched/stoned on hamon when in their original polish.   It is