Conservation of Modern Coins
Posted on 6/1/2006
Proper conservation techniques such as those used by Numismatic Conservation Services (NCS) can remove most or all of these types of contamination as well as many other types. It is not at all uncommon for a modern coin that would grade 67 or 68 (Mint State or Proof) due to these various problems, to grade 69 or even 70 after proper conservation. It is also extremely important to remember that several of these contaminants will continue to get worse and possibly damage the surface of the coin over time. Numismatic Conservation Services (NCS) has spent numerous hours developing the best methods for conserving the various problems that they encounter. Please note that certain types of problems cannot be addressed through professional conservation. In these cases, surface damage has occurred which cannot be reversed.
If you currently have coins that have been affected by any of the problems listed above or any other problems, you can send your coins to NCS for conservation and then have the coins submitted directly to Numismatic Guaranty Corporation (NGC) for grading. If you have any further questions about rare coin conservation, feel free to contact NCS toll-free at 1.866.NCS COIN.
This article originally appeared in the June 2006 NCS eNewsletter.
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