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<p>[QUOTE=&quot;desertgem, post: 2128697, member: 15199&quot;]Probably in your profession , you have seen museum coin collections including US coins. Most of them are what would properly be classified as altered surface~ harsh cleaning, polishing, use of dental explorers and picks, and even covering with an organic wax material to protect. Since many dug coins would be poor to present without this, they would be considered damaged by today&#039;s surface conscious collectors. But as few observers would get close enough to them, they would appear perfectly acceptable , as larger details would be sharp, and the scratches &#039;invisible&#039;. The members who collect ancient coins on this site generally has a different idea as to what is acceptable , including bristle ( some metal) cleaning of debris , electrolysis, strong chemicals, etc. And since that is generally acceptable within that group, it is common. The US coin member who want to tell a MS70 from a MS?? cleaned with microscopic scratches ( maybe only visible as luster breaks) will write threads with 20+ pages of posts. I don&#039;t agree with either group completely, so you will find variations in acceptance. Some say one&#039;s eyes become less as you age, but what your brain can perceive through experience makes up for it. Welcome to the forum! Jim[/QUOTE]</p><p><br /></p>

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