Tag: Cleaned Coins

Cleaned Copper May Be Challenging to Detect

Cleaned Copper May Be Challenging to Detect

Posted by David W. Lange, NGC Research Director This month Dave discusses the difficulty of detecting cleaned copper and bronze coins. My recent column on the mistaken perception held by many that old coin albums will still prompt attractive toning on coins today elicited a great deal of comment from both collectors and dealers. It […]

By October 25, 2011 1 Comments Read More →
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