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<p>[QUOTE=&quot;Barney McRae, post: 25904609, member: 150594&quot;]I have no idea.&nbsp; But for old coinage, maybe it&#039;s better that it was only 90% silver.&nbsp; The other 10% copper might have given it a longer shelf life through circulation? I don&#039;t know, maybe the experts can answer that one.[/QUOTE]</p><p><br /></p>

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