Terry, I've read that Renaissance Wax is good for preserving ivory. I've used it on all my ivory grips. No problems.Many people advised the use of mineral oil. I wonder if a good penetrating wax might serve the same purpose. The well known master engraver, Ken Hurst, once gave me some oil that he said came from a sea animal that was supposed to be great for preserving ivory. The stuff stunk to high heavens.