When a coin is improperly cleaned, surface metal is forcibly removed from the surface by either mechanical or chemical means.
当钱币被归类为“不恰当清理”，通常都关系到币面遭受了物理性或者化学性的腐蚀。
当钱币被归类为“不恰当清理”，通常都关系到币面遭受了物理性或者化学性的腐蚀。
When a coin comes back graded with the qualifier “improperly cleaned” it can be disappointing. Some numismatists almost take it personally as an accusation rather than the simple description of the coin that it is. As numismatists we strive to acquire coins that are as natural and damage free as possible. This drive is so great that occasionally coins can receive treatments that may be intended as beneficial but in actuality are very damaging. What makes a coin improperly cleaned is important to identify when considering new coins to add to the growing collection.
当钱币被鉴定为“不恰当清理”等级，这往往是令大家失望的。有些钱币收藏家甚至不能接受，或者做出公开指责的行为但是却不了解何谓“不恰当清理”等级的意义。钱币收藏家都是向往能得到一枚竟可能自然和没受伤害的钱币。往往这样动力促使很多藏家尝试去处理他们持有的硬币，希望可以让硬币呈现更完美的一面，但事实上往往给硬币带来很大的伤害。什么原因导致到硬币被断定为不恰当的处理。
当钱币被鉴定为“不恰当清理”等级，这往往是令大家失望的。有些钱币收藏家甚至不能接受，或者做出公开指责的行为但是却不了解何谓“不恰当清理”等级的意义。钱币收藏家都是向往能得到一枚竟可能自然和没受伤害的钱币。往往这样动力促使很多藏家尝试去处理他们持有的硬币，希望可以让硬币呈现更完美的一面，但事实上往往给硬币带来很大的伤害。什么原因导致到硬币被断定为不恰当的处理。
When we speak of cleaning on a coin we are almost always referring to a type of damage to the original surface. Identifying improperly cleaned coins is important as those coins with damage trade at a diminished premium. Improperly cleaned coins typically come in two distinct types: improperly cleaned by mechanical means and the less common chemical means.
当我们说“清理”其意就是指一种破坏钱币币面的行为。分辨“不恰当清理”对钱币收藏而言是极为重要的，同时它也严重影响其交易价格。一般来说不恰当处理有两大类别：物理性和化学性。
当我们说“清理”其意就是指一种破坏钱币币面的行为。分辨“不恰当清理”对钱币收藏而言是极为重要的，同时它也严重影响其交易价格。一般来说不恰当处理有两大类别：物理性和化学性。
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| 1838-O Dime Before NCS Conservation | |
Typically a mechanical improperly cleaned coin will feature certain telltale signs. Of these features, the most prominent are the presence of large areas of parallel scratches. These parallel scratches can be across the entire coin or in just a particular area. Looking at the coin at a variety of angles will help make the nature of these scratches clear. The scratches are caused by metal removed from the surface of the coin and is an indication of a coin that has been cleaned through mechanical means. While some other phenomena can make the appearance of parallel scratches on the surface of a coin, the scratches of a coin that has been improperly cleaned are distinct in one important way. Scratches that continue from the field (background) over the devices(details) and legends are a sign of improper cleaning.
一般来说，物理性不恰当处理的硬币将会凸现某些特点。当中最突出的就是大面积地出现并行划痕。这些并行的划痕可以跨整个硬币或只是一个特定的部位。从不同的角度去观察将有助于辨别这些划痕清除的性质。这些划痕移除了币面小部分的金属，这就是物理性不恰当清理的特点。同时，一些其它的现象也可能导致币面出现并行划痕，类似的划痕常常会跨过币面的凹进底部延伸到突出细节甚至币面字体。这同时也是物理性不恰当清理的特点。
一般来说，物理性不恰当处理的硬币将会凸现某些特点。当中最突出的就是大面积地出现并行划痕。这些并行的划痕可以跨整个硬币或只是一个特定的部位。从不同的角度去观察将有助于辨别这些划痕清除的性质。这些划痕移除了币面小部分的金属，这就是物理性不恰当清理的特点。同时，一些其它的现象也可能导致币面出现并行划痕，类似的划痕常常会跨过币面的凹进底部延伸到突出细节甚至币面字体。这同时也是物理性不恰当清理的特点。
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| 1838-O Dime After NCS Conservation The bright area around the date is from the camera picking up all the parallel hairline scratches of mechanical improper cleaning. | |
While patches of hairline scratches are a quick identifier for most coins that have been improperly cleaned, there are other features to look for. An even granular texture to the surface of the coin or an unusual color, especially with copper coins, can be indications that a coin has been improperly cleaned by chemical means.
一般来说，出现大面积划痕是一种迅速判断不恰当清理的方式。当然除了划痕以外，当硬币呈现不寻常的颜色，尤其是与铜硬币的表面出现均匀的粒状纹理迹象，就有可能是一种不恰当的化学手段处理。
When a coin is improperly cleaned, surface metal has been forcibly removed from the surface by either mechanical or chemical means. Once this metal has been removed, sadly this cannot be replaced. In the case of a coin that has been mechanically cleaned, any attempt in removing scratches will result in additional scratches, further damage, and a less desirable coin.
当硬币受到不恰当的清理，金属表面已被强行通过物理或化学的手段处理。一旦某金属层面已被移除，他的伤害是无法被替代的。一旦硬币已被物理性清理，任何企图尝试去移除这些划痕反而将会导致更多和额外的划痕、 进一步的破坏和成为较不可取的硬币。
While it may not be possible to reverse the effects of an improper cleaning, discovering a coin in your collection that has been improperly cleaned is far from a loss. A coin that has been improperly cleaned may still be authenticated and certified with a qualifier. By examining the features that make this coin deemed improperly cleaned, coins with similar damage may be better identified in the future.
虽然不恰当处理的现实是不可能扭转的，但是一枚经由不恰当处理的硬币也未必使你完全亏本。不恰当清理的硬币，仍可能进行真伪认证的。所以通过了解不恰当处理的特点对于你未来的钱币采购是极为重要的。
虽然不恰当处理的现实是不可能扭转的，但是一枚经由不恰当处理的硬币也未必使你完全亏本。不恰当清理的硬币，仍可能进行真伪认证的。所以通过了解不恰当处理的特点对于你未来的钱币采购是极为重要的。
备注：中文翻译版可能和英文版本有微差的翻译错误。任何最终参考将会以英文版本为主。
Posted on 7/12/2016
Source: NGC
