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Message:: [QUOTE="Pickin and Grinin, post: 26594997, member: 73995"]I would just say that it toning. It's not very common but copper will oxidize to look white or silvery. I believe that [USER=19094]@robec[/USER] has a few in his registry.PCGS even recognizes the tone as natural if the surfaces are original. This is from PCGS.Yes<a href="https://www.bing.com/ck/a?!&&p=3caf8594bd1e21781f1763ab52f615709cda8f616e34a388584cd817af4369c5JmltdHM9MTc2NTkyOTYwMA&ptn=3&ver=2&hsh=4&fclid=2a5142f4-9753-6bdc-04b0-547296456a79&u=a1aHR0cHM6Ly93d3cucGNncy5jb20vbmV3cy9vcmlnaW5hbGl0eS1hbmQtdG9uaW5n&ntb=1" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.bing.com/ck/a?!&&p=3caf8594bd1e21781f1763ab52f615709cda8f616e34a388584cd817af4369c5JmltdHM9MTc2NTkyOTYwMA&ptn=3&ver=2&hsh=4&fclid=2a5142f4-9753-6bdc-04b0-547296456a79&u=a1aHR0cHM6Ly93d3cucGNncy5jb20vbmV3cy9vcmlnaW5hbGl0eS1hbmQtdG9uaW5n&ntb=1" rel="nofollow">Yes, copper coins can tone white or silver. PCGS graders look for original surfaces, and while toned coins can be graded, they must exhibit natural, attractive toning. Coins that appear unnatural or overly dark may not receive a high grade. Additionally, copper coins can change in appearance over time, which can affect their grading and market value</a>[/QUOTE]