3 worn out keris

[Rick]

My Wife has been using a washing soda solution that has electrical current run through it from a trickle charger. It works very well and fairly quickly.
She has been de-rusting cast iron pans.
I know that the technique has been discussed in detail in the forums.

Apolaki, your blade in bugis dress seems very similar in technique to this example that I got some years ago.