So I've been slowly going through several knives that were my dads and grandfathers. (I have no idea of any value,and that's not really the concern), but is there someone / place to go to or send them to, to see if they can be repaired / cleaned up. IE, spots on blades, I have one Western brand knife that the guard is loose, etc. I'd just like to have them usable if I'm going to keep them. Thanks