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<p>[QUOTE=&quot;robec, post: 3960992, member: 19094&quot;]I had a 1970-D Mint set still in the mint cello. All the coins were dull and hazy. I took the quarter out and applied MS70 to both sides with a Q-tip. The haze almost instantly disappeared as soon as the MS70 touched it.</p><p><br /></p><p>I would never use it on copper however. Copper seems to be very reactive or at least it has unpredictable results, most of the time with negative color appeal.</p><p><br /></p><p>Before</p><p><img src="http://www.robecsimages.com/photos/Home/1970dWash_RawO_03.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><img src="http://www.robecsimages.com/photos/Home/1970dWash_RawR_01.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p>After</p><p><br /></p><p><img src="http://www.robecsimages.com/photos/Home/1970dWash_RawO_08.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><img src="http://www.robecsimages.com/photos/Home/1970dWash_RawR_09.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" />[/QUOTE]</p><p><br /></p>

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