I noticed something odd about the patina of my plane the other day. It’s signed in some way but the cursive ink is illegible at this point. I would like to bring the signature/note out somehow. I have heard that you can use a type of acid to lighten wood that will not affect ink (good for fixing old rulers where the boxwood has darkened) but have never messed with this. If I did this I would like to darken the signature, then restore the original patina on the tool.
-- Make furniture that lasts as long as the tree - Ryan