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<p>[QUOTE=&quot;Conder101, post: 6486316, member: 66&quot;]The dollar, as a specific weight of gold, was established long before the double eagle came along.</p><p><br /></p><p>And yes the number of grains in an avoirdupois ounce is different from that of a troy ounce, but when you are dealing with precious metals you always use the troy oz.&nbsp; All the calculations I showed are troy figures.</p><p><br /></p><p>And dollars had to be defined before $20.67/oz had any meaning.&nbsp; In fact if the definition of the dollar hadn&#039;t been changed from 24.75 grains to 23.22, .9675 oz of gold would have been $19.35.&nbsp; $20 worth of gold would have required 1.03 troy oz and gold would have been $19.39/oz.&nbsp; The double eagle&nbsp; would then have weighed 495 grains of pure gold or 544.5 grains, (28.5 grains heavier) of standard alloy gold.[/QUOTE]</p><p><br /></p>

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