Well....a bone handle can be re hydrated in mineral oil at risk of darkening, then waxed to preserve, the longer it soaks usually the more it swells. Have used it on antler scales and while adding weight it did improve condition.Bone has a moisture content that affects fit when way dry or way wet if not preserved. My concern with electrolysis would be if any swelling of deposits put force against bone scales around pins and bolster(s) if they are rusted badly and don,t allow scales to move outward. Coloring too may result, especially if electrolyte allowed to get colored. Depends on value but I,d give it a bump and watch its progress. The bone itself unless really degraded should tolerate a brief bath before inhaling a lot of liquid. I,d do it to one of yours.
