My father was sorting through his tools the other day and pulled out an old rusty saw. He thought it might be ready for the landfill, but I stopped him short. I thought I recognized a silver button on the handle and, sure enough, it was a Disston.
I asked if I could check it out. My best guess is its a D8. The button reads Disston Canada and, to my surpirse, through the rust I can see a hint of the ornate etching on the face of the blade.
I've seen many recommended techniques for removing the rust--sanding, citric acid bath, electrolysis--but I can't tell what effect they may have on the etching.
Is there any way to remove the rust and still preserve the etching?