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<p>[QUOTE="Lehigh96, post: 1620563, member: 15309"]I placed a 2001-S Silver Proof Kennedy Half Dollar in a coin envelope 5 years ago and tucked it away in my desk just to see what would happen. The results are scary though not surprising.</p><p><br /></p><p><img src="http://i117.photobucket.com/albums/o59/ACPitBoss/Kennedy%20Half%20Dollars/KHD2001-SSilverProof_zps2480b60c.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p>The obverse is blanketed in a specked brown patina that mutes the depth of the mirrors and reduces the impact of the deep cameo contrast. The reverse effect was very different. Rather than a homogenous pattern like the obverse, a deep chestnut patina has formed in small patches of the devices and lettering. I wouldn't go so far as to call it attractive, but it is certainly unique and far better than the obverse.</p><p><br /></p><p>Since the value of this is intrinsic, there really is no financial risk in destroying the appearance of the coin, other than the fact that it will be difficult to sell this as silver bullion to most silver stackers. But the experiment does a good job in showing why proper storage of your coins is important. People love to rave about toning and many want to find a cheap way to create a beautiful rainbow toned coin. Unfortunately, most attempts to do so will yield results similar to my 5 year experiment, a brown POS.</p><p><br /></p><p>Comments welcome![/QUOTE]</p><p><br /></p>
[QUOTE="Lehigh96, post: 1620563, member: 15309"]I placed a 2001-S Silver Proof Kennedy Half Dollar in a coin envelope 5 years ago and tucked it away in my desk just to see what would happen. The results are scary though not surprising. [IMG]http://i117.photobucket.com/albums/o59/ACPitBoss/Kennedy%20Half%20Dollars/KHD2001-SSilverProof_zps2480b60c.jpg[/IMG] The obverse is blanketed in a specked brown patina that mutes the depth of the mirrors and reduces the impact of the deep cameo contrast. The reverse effect was very different. Rather than a homogenous pattern like the obverse, a deep chestnut patina has formed in small patches of the devices and lettering. I wouldn't go so far as to call it attractive, but it is certainly unique and far better than the obverse. Since the value of this is intrinsic, there really is no financial risk in destroying the appearance of the coin, other than the fact that it will be difficult to sell this as silver bullion to most silver stackers. But the experiment does a good job in showing why proper storage of your coins is important. People love to rave about toning and many want to find a cheap way to create a beautiful rainbow toned coin. Unfortunately, most attempts to do so will yield results similar to my 5 year experiment, a brown POS. Comments welcome![/QUOTE]
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