I really don't. You don't want to do too much, maby a little fine stone work and a light cleaning/polish. Really light. I have a commercial saw sharpener here in town. He sharpens all the big band saws for the mills around and if the blade on one of my using knives needs recontoured or some heavy work, I use him. My eyes are not great any more and he likes what I bring in, he is also overly reasonable. I think sometimes people start with too coarse a stone or grit and do damage. You can do everything with a very fine grit or stone, it just takes longer. I have a large 18 inch set of stones and diamond sharpeners that I use for touch up and fine sharpening. The key with a valuable old blade is less is better and be careful with the blade geometry.Argonaut: I got one of this sort of collector item, that needs TLC sharpening job really bad. Got a link for such?