NCS Conservation of Cleaned Copper Coins

Comments

• JCMhouston Posts: 5,306 ✭✭✭

  February 16, 2011 3:54AM

  ???
  
  If it has been improperly cleaned (hairlined for example) it will still be in a details holder. When they conserve copper, in my personal experience, they only remove surface contaminants no harsh cleaning or changing color.

  JCM-Houston
  World Collection
  British Collection
  German States Collection

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• renomedphys Posts: 3,827 ✭✭✭✭✭

  February 16, 2011 4:00AM

  I've seen this. One of mine I sent in for a color guarantee. I got a call from them saying that there was some contaminant on the surface, and that they were going to have the NCS dept "get that off there" for me. I was honestly hoping that the coin would show a little more color, but it was the same shoe-polish brown coin in an RB holder when I got it back.
  
  Still, I did OK on that coin.

  Empty Nest Collection

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• LindeDad Posts: 18,766 ✭✭✭✭✭

  February 16, 2011 4:35AM

  << <i>To numeric grade, without details? >>
  
  
  
  How would they unclean a coin?

  My Current project....https://www.pcgs.com/setregistry/mysetregistry/album/160794

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