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<p>[QUOTE=&quot;stevereecy, post: 853055, member: 19884&quot;]Ooh!&nbsp; Ooh!&nbsp; I know.</p><p>&nbsp;</p><p>You could do this.&nbsp; Go onto E-bay and count the number a certain coin listed.</p><p>&nbsp;</p><p>Then you could look at the number of coins listed for something where the number of available coins is very well known...like a commemorative that came out a few year ago, or something.&nbsp; </p><p>&nbsp;</p><p>You could compare ratios.</p><p>&nbsp;</p><p>Then you could refine that ratio with other coins of known mintages.</p><p>&nbsp;</p><p>Example:&nbsp; Suppose that 1,000,000 coins commemorating the 20th anniversary of modern commemorative coins were made.&nbsp; And there are 1,000 of them listed on ebay.</p><p>&nbsp;</p><p>Then suppose that 100 of &quot;your coin&quot; are listed on ebay.&nbsp; You might be able to conclude that there are about 100,000 of your coins surviving because it makes up 10% the listings of the commemorative.</p><p>&nbsp;</p><p>Steve[/QUOTE]</p><p><br /></p>

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