This is a Wakizashi from my collection it looks like someone has been handing the blade for the last 60 yr and there are marks all over it from being touched
i have been using Uchiko pwder to try clean it up but it seems to take forever
i was wondering it i keep at it will it bring it back to life and if by looking at the blade any idea on age
Im also told it was most likely a tank commanders sword it this possible
thank Steve