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Tap Water And Paper Towel Bad For Rare Coins?
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<p>[QUOTE="physics-fan3.14, post: 2752051, member: 19165"]Try this: take a quarter from your pocket change (a quarter worth no more than face value). Examine the surface carefully, paying very close attention to any hairlines. Even better, take a quick photograph of it. </p><p><br /></p><p>Now rinse it with tap water. Gently pat or blot it dry with a paper towel. Examine it again very closely. Unless you vigorously rubbed that coin with that paper towel, I'll bet you won't see any hairlines.[/QUOTE]</p><p><br /></p>
[QUOTE="physics-fan3.14, post: 2752051, member: 19165"]Try this: take a quarter from your pocket change (a quarter worth no more than face value). Examine the surface carefully, paying very close attention to any hairlines. Even better, take a quick photograph of it. Now rinse it with tap water. Gently pat or blot it dry with a paper towel. Examine it again very closely. Unless you vigorously rubbed that coin with that paper towel, I'll bet you won't see any hairlines.[/QUOTE]
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