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| These are increasingly more desirable. Some collectors like to proudly showcase their coins in archival folders, while others like air-tight capsules, or mylar-lined 2x2's. Whatever you choose, do not store yours in the soft flips you often see on the marketplace. These are made from polyvinyl chloride which breaks down in time and destroys the coin it was intended to protect. In the event you purchase a coin already within such a sleeve, move it as quickly as possible to a better storage medium. You may consider Mylar, but recognize that these are hard and might scratch the coin if it is not inserted and removed carefully. While they aren't air-tight, they are adequate choices for moderate value coins that will be "left alone" for numerous years. |
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