Cleaned Coin - While any coin subjected to a cleaning process could technically be considered cleaned, ...
cleaned coin
A coin which has been dipped, polished, whizzed, wiped, etc. Generally speaking, a certain amount of very light cleaning (such as dipping) done by a professional may be acceptable.
uncleaned coin lots
My experience in working with school groups participating in the Ancient Coins for Education (ACE) program leads me to offer this page as a resource for participating classes to identify their coins.
cleaned coins Coin that have been dipped in acids or abrasively cleaned with an eraser or silver cleaners. cleaned paper money Banknotes that have been dipped and washed in cleaning fluids to remove dirt and stains.
application of solvents, dipping, and rubbing with abrasive materials or substances cleaned coin while any coin subjected to a cleaning process could technically be considered cleaned, ...
Avoid cleaning any coin if at all possible because a cleaned coin may decrease its value if not done properly.
Some cleaned coins have retoned, either naturally or artificially (artificial toning is often very dark and may have been used to cover evidence of repair work or harsh cleaning). Some coins were cleaned recently and look artificially white.
This deliberate artificial toning will not adhere to the abraded surface of a cleaned coin in the same way that it would to the original coin metal. The artificial toning will lack depth and the colors may appear to be "painted" or applied by crayons.
The best way to tell the cleaned and whizzed coin, and to avoid them, is to know what an original coin looks like since there are less variations with the look of an original coin than there is with the look of variously cleaned coins.
The act of creating a cleaned coin.
Clip
A coin or planchet missing a piece of material from its periphery, caused by a malfunction in making the planchet. A curved shape is the most common type of clip.
As a result, cleaned coins are worth significantly less money than wholly original coins. Even though a coin is dark in color, does not mean that it is less valuable.
The coins with the oxide were either completely or mostly free of the bacteria; not so with the cleaned coins, he said.
The findings show that the oxide itself, not the metals in the coins, inhibits bacteria growth, he said.
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Collectors prefer original, natural surfaces and will usually discount cleaned coins, sometimes heavily.
Artificially Toned - A coin which has been treated in some way to simulate a natural toning or give the appearance of age. It is sometimes done to disguise a badly cleaned coin. The colour is often very dark and somewhat lifeless.
What's far more important than deciding whether you're willing to accept a cleaned coin, is knowing whether or not you did.
Many of these dealers in the big magazines (COINS, Coin World, Coinage, Coin Values, etc) are known for selling cleaned coins as BU/UNC coins. Before buying from a dealer in these magazines, simply Google their store name and do some research.
he knew full well whether to reach to acquire a piece because it might never be offered again, even though it might not be a gem (an instance is provided by the copper striking of the curious Bailly trade dollar pattern, P-1427, a cleaned coin, ...
Most experienced numismatists are able to spot a cleaned coin fairly easily. If a coin is so corroded that it is unrecognizable, you may try a solution of mild dish soap and distilled water.
One of my first purchases was an uncleaned coin lot that contained two small bronze coins with the dragging captive reverse. One had the emperor holding the Chi Rho symbol, the other did not.
Now having bought a couple of cleaned coins from the expert in question and having lost more than 50% of their value when selling them I vigorously disagreed with the idea that cleaning wouldn't effect the value!.
Most are resources needed for Attributing, Valuing, Historical Information, Collector Communities, Auction Houses, Traders, Online Stores, News, Periodicals, Un-cleaned coins and tutorials on how to clean and attribute them.
with in some way after leaving the Mint, generally for the purpose of increasing its value to collectors. Typical altering can be the removal of a mintmark or installation of a spurious one. Altered is sometimes used in reference to cleaned coins.
 See also: Coin, Collector, Grade, Mint, Copper
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