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<p>[QUOTE="sand, post: 11071848, member: 118540"]A couple more tips.</p><p>1. For long term storage, don't keep your coins in PVC (Poly Vinyl Chloride) plastic flips. Those are the soft, transparent, squares of plastic, often smelling like a brand new plastic shower curtain, which are sometimes still used, when a dealer ships a coin to a buyer. PVC flips have been known to cause bronze disease (BD) on bronze coins, which is a corrosive light green powdery substance which destroys the coins (bronze disease is different than hard, dark green patina which is benign and even attractive sometimes). PVC flips have also been known to cause green slime, or sometimes clear slime, on silver coins, which also damages the coins. If you want to use square plastic holders, be sure that they are PVC free (PVC free holders are usually hard plastic). In fact, I am wary of keeping coins in any sort of plastic, although I still keep my Lincoln cent collection in blue Whitman folders, which have hard plastic slide covers. The most popular brand of PVC free plastic flips, are the SAFLIP brand.</p><p>2. Every ancients coin collector has a different theory, about the best way to store ancient coins. And it may depend on personal preference. My method, is to use Abafil velvet coin trays, which are stored in Abafil coin cases. I have purchased all of my Abafil trays and cases from this person, who is the main Abafil seller in the US : <a href="https://www.coin.com/cases/" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.coin.com/cases/" rel="nofollow">https://www.coin.com/cases/</a> He also sells high end ancient coins. You can also purchase Abafil trays and cases directly from the manufacturer in Italy, but I've never done that.[/QUOTE]</p><p><br /></p>
[QUOTE="sand, post: 11071848, member: 118540"]A couple more tips. 1. For long term storage, don't keep your coins in PVC (Poly Vinyl Chloride) plastic flips. Those are the soft, transparent, squares of plastic, often smelling like a brand new plastic shower curtain, which are sometimes still used, when a dealer ships a coin to a buyer. PVC flips have been known to cause bronze disease (BD) on bronze coins, which is a corrosive light green powdery substance which destroys the coins (bronze disease is different than hard, dark green patina which is benign and even attractive sometimes). PVC flips have also been known to cause green slime, or sometimes clear slime, on silver coins, which also damages the coins. If you want to use square plastic holders, be sure that they are PVC free (PVC free holders are usually hard plastic). In fact, I am wary of keeping coins in any sort of plastic, although I still keep my Lincoln cent collection in blue Whitman folders, which have hard plastic slide covers. The most popular brand of PVC free plastic flips, are the SAFLIP brand. 2. Every ancients coin collector has a different theory, about the best way to store ancient coins. And it may depend on personal preference. My method, is to use Abafil velvet coin trays, which are stored in Abafil coin cases. I have purchased all of my Abafil trays and cases from this person, who is the main Abafil seller in the US : [URL]https://www.coin.com/cases/[/URL] He also sells high end ancient coins. You can also purchase Abafil trays and cases directly from the manufacturer in Italy, but I've never done that.[/QUOTE]
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