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<p>[QUOTE=&quot;satootoko, post: 175254, member: 669&quot;]Mikjo0 is absolutely right that a wrong weight can conclusively prove counterfeit, but a orrect weight can only make further investigation reasonable.</p><p><br /></p><p>Because the value of genuine pieces is so much greater than the bullion value,&nbsp; there are many counterfeits that are made from the same alloy as the originals.&nbsp; Many contemporary counterfeits are cast/milled in a mix of lead and lighter medals&nbsp; resulting in the same total.</p><p><br /></p><p>For authentication purposes, silver crowns should <i>always</i> be weighed on a scale that is accurate to the nearest .01g, and preferably is even more sensitive.</p><p><br /></p><p>US and Japanese Trade dollars should weigh 27.22g; (420 grains); but&nbsp; British Trade Dollars only weigh 26.9568g (416 grains).&nbsp; Tolerance is very tight on all three of those issues, and wear is responsible for an insignificant reduction, so I would be suspicious of any coin that varied by more than .05g.[/QUOTE]</p><p><br /></p>

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