Nell, We were told at one of our genealogy seminars to take 1. a ruler 2. can of cheap shave cream 3. roll of paper towels 4. and our trusty old camera. When we find an old stone we cannot read that is full of moss or something that looks like tree bark more or less, just spray a small amount of the shave cream on the writings on the stones and then take your ruler and run it across the writings to get the cream inside the grooves of the writings. Then rake the rest off with your ruler. Then take your pictures. It works great. Then two years later they tell us at another seminar meeting to take colored chalk and go inside the grooves to bring out the writings. So I would guess it is up to you what ever you use. I have taken so many photographs of my relatives that have gone on before us. I placed each one on a page inside their pages of our History book. Usually the page after their death certificate. That way everyone that sees it can immediately see who it is and how they are related to that particular individual. Wrakj