• When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.


This topic is now archived and is closed to further replies.

green copper stains on silver coin

2 posts in this topic

  • Member

We have had experience in working on Chinese coins with a similar appearance to the one in your post. The results have been somewhat mixed. The green you are seeing on the coin can usually be removed though the surfaces underneath could be damaged. I would be unable to predict if your coin would grade with NGC from the image. I would recommend having your coin professionally conserved to remove the damaging residues. We would have to see the coin in person to determine exactly what might be done to help your coin.


Chris, NCS

Link to comment
Share on other sites