| These are increasingly in demand. Some investors like to proudly showcase their coins in archival folders, while others like airtight capsules, or mylar-lined carboard. Whatever you choose, do not store yours in the PVC flips you often see in the marketplace. They are comprised of polyvinyl chloride which decomposes over time and ruins the piece it was to protect. Should you acquire a coin already in such a sleeve, transfer it ASAP to a better storage medium. You might consider acetate flips, but understand that these are brittle and might scratch the coin if it is not inserted and taken out carefully. While they are not airtight, they are reasonable choices for medium priced coins that will untouched for numerous years. |