[Green]

Dear keris addicts

I have several keris that came from European (non keris culture) sources that have hardened layer of protective substance on the blade. This layer had darkened over time. An example is attached.

Can anyone suggest how I can get rid of this layer?
Many thanks in advance.

This is not a proper way of preserving keris (in our native culture) . The usual way is to have periodic washing of the blades if they become rusty and stain with warangan where applicable.