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<p>[QUOTE=&quot;desertgem, post: 2006577, member: 15199&quot;]Yes, copper is higher than zinc. But what are the tolerances as given by the mint, ( 4.06 +/- ?? grams )if they do give it. Often when this has happened ( different ratio is used ) the country may change the ratio on a sliding decrease, as they use up old reserves to prevent any hoarding, and can use different suppliers.&nbsp; I am assuming this is a Euro nation coinage as the formula seems to be what is called &quot;Nordic Gold&quot; brass.[/QUOTE]</p><p><br /></p>

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