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<p>[QUOTE="calcol, post: 3055706, member: 77639"]I too made the mistake of using Whitman folders and found they are an excellent way to induce edge corrosion of coins. I don't really have any advice on restoration, which can be tricky, especially for copper. Each coin needs to be examined by a knowledgeable person and then a decision made as to its fate. Most of my corroded cents went into a roll wrapper and then to the bank.</p><p><br /></p><p>Best way to store coins is in inert plastic (polyester, polyethylene, polypropylene ... NOT vinyl). Inert flips are usually made of polyester; one brand of polyester is Mylar. Flips themselves can go into album-like pages mounted in a notebook. Alternate to flips are fold and staple or fold and stick, polyester-lined cardboard flips or holders. These can also be mounted in album-like pages.</p><p><br /></p><p>Coins, especially copper, left in direct contact with cardboard will often corrode or tone.</p><p><br /></p><p>Cal[/QUOTE]</p><p><br /></p>
[QUOTE="calcol, post: 3055706, member: 77639"]I too made the mistake of using Whitman folders and found they are an excellent way to induce edge corrosion of coins. I don't really have any advice on restoration, which can be tricky, especially for copper. Each coin needs to be examined by a knowledgeable person and then a decision made as to its fate. Most of my corroded cents went into a roll wrapper and then to the bank. Best way to store coins is in inert plastic (polyester, polyethylene, polypropylene ... NOT vinyl). Inert flips are usually made of polyester; one brand of polyester is Mylar. Flips themselves can go into album-like pages mounted in a notebook. Alternate to flips are fold and staple or fold and stick, polyester-lined cardboard flips or holders. These can also be mounted in album-like pages. Coins, especially copper, left in direct contact with cardboard will often corrode or tone. Cal[/QUOTE]
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