| These are growing in demand. Some investors opt to proudly display their coins in archival folders, while others prefer airtight capsules, or mylar-lined carboard. Whatever you choose, do not store yours in the PVC flips you often see on the market. They are comprised of polyvinyl chloride which breaks down in time and ruins the coin it was to protect. In the event you purchase a coin already within such a sleeve, transfer it ASAP to something better. You might consider acetate flips, but recognize that they are brittle and might scuff the coin if it is not placed and taken out carefully. While they are not air-tight, they are reasonable choices for moderate priced coins that will be "left alone" for many a long time. |