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How is copper artificially lightened ?
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<p>[QUOTE="Leadfoot, post: 218009, member: 2972"]There are a number of ways to lighten copper, most entailing a dip of some type (although whizzing also will make a coin red again). However, the color of the coin in-hand would usually be a dead giveaway. It is difficult, but not impossible, to make a copper coin red again without it being obvious to those familiar with the end result. Take a look at heritage auction archives and search large cents for "recolored" and/or "cleaned" and you'll see lots of examples. All IMHO, and I hope this helps...Mike[/QUOTE]</p><p><br /></p>
[QUOTE="Leadfoot, post: 218009, member: 2972"]There are a number of ways to lighten copper, most entailing a dip of some type (although whizzing also will make a coin red again). However, the color of the coin in-hand would usually be a dead giveaway. It is difficult, but not impossible, to make a copper coin red again without it being obvious to those familiar with the end result. Take a look at heritage auction archives and search large cents for "recolored" and/or "cleaned" and you'll see lots of examples. All IMHO, and I hope this helps...Mike[/QUOTE]
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How is copper artificially lightened ?
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