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<p>[QUOTE=&quot;iPen, post: 2046629, member: 69760&quot;]For circulated coins, is there a rule of thumb for the expected wear shown as a percentage of weight loss over X years? So, say, a coin will lose 1-2% in weight due to wear every 25 years in circulation.</p><p><br /></p><p>I only ask about circulated coin because I&#039;m sure coins kept in collector&#039;s care don&#039;t lose that much weight if any due to wear from whatever source (though I&#039;m sure the environment the coin is in can cause wear).[/QUOTE]</p><p><br /></p>

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