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<p>[QUOTE=&quot;GDJMSP, post: 3973821, member: 112&quot;]Unless you catch the angle and the light just right - you won&#039;t be able to see them. Which of course is why many, many people claim they do stuff like this all the time and cannot see any damage.</p><p><br /></p><p>But consider this, think about what verdigris is. It is what metal was turned into by corrosion, a fine granular substance. A granular substance that in effect is rubbed over the surface of the coin by the action of the brush. Even if you discount the effects of the brush itself entirely, and there will always be effects from a brush, any brush, can you even imagine how doing such a thing as rubbing a granular substance across the surface of a coin <b>cannot</b> result in hairlines and fine scratches on the coin ?[/QUOTE]</p><p><br /></p>

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