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<p>[QUOTE=&quot;mikediamond, post: 989995, member: 1859&quot;]After further study and some experimentation, I&#039;ve come to agree with Ken Potter that this is a dropped letter.&nbsp; I tried to achieve the same sort of contact mark with one of my own Polk dollars.&nbsp; While I was able to generate a clear incuse T, I couldn&#039;t get the same depth, couldn&#039;t do it without generating a surrounding contact facet, and couldn&#039;t do it without catching one of the adjacent letters.&nbsp; While I still don&#039;t understand why there are apparent pressure ridges, this observation doesn&#039;t negate my other observations.&nbsp; The preponderance of the evidence now favors a dropped letter, in my opinion.[/QUOTE]</p><p><br /></p>

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