If you are interested in long-term storage, you should opt for archival boxes made of acid-free material. Thus, you will have all your pictures neatly organized and categorized. If you deal with old and fragile pictures, you may notice a dull silver sheen on them. This means the original silver is coming through the paper onto the front side and you can lose your images forever. In this case, you have to address professionals who can duplicate photos and restore copies as soon as possible.