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<p>[QUOTE=&quot;dougsmit, post: 2122438, member: 19463&quot;]Billion is a large number and a different amount in the some places than in others.</p><p><a href="http://en.wikipedia.org/wiki/Long_and_short_scales" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://en.wikipedia.org/wiki/Long_and_short_scales" rel="nofollow">http://en.wikipedia.org/wiki/Long_and_short_scales</a></p><p><br /></p><p>Billon is an alloy with low silver content.</p><p><a href="http://en.wikipedia.org/wiki/Billon_%28alloy%29" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://en.wikipedia.org/wiki/Billon_%28alloy%29" rel="nofollow">http://en.wikipedia.org/wiki/Billon_(alloy)</a></p><p><br /></p><p>The question here is when is appropriate to stop calling a coin silver and start calling it billon.&nbsp; Similarly, when does the silver drop so low that it is copper with impurity levels of silver rather than billon?&nbsp; I say billon should look a little gray but silver should not look porous even when it is not rotten.&nbsp; Opinions?</p><p><br /></p><p>Valerian II&#039;s coins came about the time Rome was debasing too much to call it silver but before the alloy needed silver wash to be gray.&nbsp; I&#039;d call this one billon.</p><p>[ATTACH=full]402547[/ATTACH][/QUOTE]</p><p><br /></p>

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