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<p>[QUOTE=&quot;hontonai, post: 651340, member: 4703&quot;]420 grains is equal to 27.22 grams.&nbsp; Since TDs were intended for use in trade with the orient, where the weight of silver, not the nominal denomination, was the key, they carry legends specifying both weight and purity, and were held to very close tolerances.[/QUOTE]</p><p><br /></p>

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