| These are increasingly in demand. Some collectors prefer to proudly showcase their coins in archival folders, while others prefer air-tight capsules, or mylar-lined carboard. Whatever you do, do not store yours in the soft flips you often see in the marketplace. These are comprised of PVC which decomposes in time and ruins the coin it was intended to protect. In the event you obtain coins already within one of these, transfer it as soon as possible to something better. You might consider acetate flips, but understand that they are hard and might scratch the coin if it is not inserted and removed carefully. While they aren't airtight, they are reasonable alternatives for moderate priced coins that will untouched for many years. |