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<p>[QUOTE=&quot;brg5658, post: 2038969, member: 29751&quot;]That was my point Doug.&nbsp; Strictly speaking, what you describe on business strike coins aren&#039;t called die polishing by the US mint.&nbsp; That&#039;s what Roger was getting at.&nbsp; The mint would often call the exact same process different things based on what kind of coin the die was intended for.&nbsp; I prefer to call the lines what they are, regardless of the physical machinery that created them (i.e., rotating wheel or otherwise).&nbsp; They should be called signs of <b><u>die maintenance and repair</u></b>.&nbsp; Those are the terms that Roger uses, and those are the ones that are least ambiguous.</p><p><br /></p><p>The point you&#039;re missing is that unless you were there during the preparation of the die and it&#039;s subsequent maintenance and repair, you are only making a guess as to which of many methods was used.&nbsp; It&#039;s perfectly possible that repair to a die made without a &quot;polishing wheel&quot; would appear exactly the same as that from a wheel.</p><p><br /></p><p>You fail to recognize the non-transitive nature of the process (a fallacy of your logic):&nbsp; <b>A causes B</b> does not imply that <b>B was caused <u>only by</u> A</b>.</p><p><br /></p><p>All die &quot;polishing&quot; lines may be parallel (by your definition), but not all parallel die repair lines are caused by &quot;polishing&quot;.&nbsp; And, because one cannot know what process caused the parallel lines, then the more general term die repair should be used.</p><p><br /></p><p>Regardless, I&#039;m done with this thread -- the pictures from posters like [USER=19094]@robec[/USER] are far better proof than are my philosophical musings (which will likely be lost on you anyway).&nbsp; <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie20" alt=":banghead:" unselectable="on" unselectable="on" />[/QUOTE]</p><p><br /></p>

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