How do you guys store your S&W wooden Presentation Cases? Do you just stack them one on top of the other or do you separate them somehow? I know most of mine are well over 40 years old and not perfect but, I do have a few that look brand new and am wondering how to store them without getting all scratched up? I have over a dozen of them, so stacking them makes the most sense. What should I use as a barrier between them? Pictures welcome.