Lots of ways to get an antique finish, Hershel cooks his blades in bleach water. Ian hardly ever uses the same technique twice. You can also use cold blueing and dip the blade in bleach to get the rusty look. Then you can use browning solution and a sweat box and if you bury the blade for several days in dirt with plenty of moister it will give a different rusty look also. You will have knock the rust back with all the different methods and the first two mentioned you need good ventilation and I don't like using either one myself, bleach fumes bad for health. There are other ways also, you just need to use your imagination. Even dish soap will rust plain steel.
