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<p>[QUOTE=&quot;gatzdon, post: 208581, member: 8247&quot;]I can&#039;t find the thread off hand, but someone here was looking at the new washington dollar and comparing it to a sacagawea under a microscope.&nbsp; </p><p><br /></p><p>they commented on how the antioxidant coating dulled the appearance of the washington dollar and decreased it&#039;s luster.&nbsp; They even commented on how the antioxidant coating looked bubbled in some spots.</p><p><br /></p><p>I plan on breaking out my stereoscope this weekend and looking at some of the ones I have.&nbsp; If I can clearly see that this pattern was due to the antioxidant coating, then we will at least have a very plausible theory that the starburst pattern is caused by a contaminant (possibly grease, oil, non-aqueous fluid) on the coin that was spun off at some point in the production process. </p><p><br /></p><p>The only point in the process I know of at the moment that spins the coins fast enough to do this is the edge inscription step.&nbsp; I was told that the production rate is about 750 coins per minute.&nbsp; That means that each coin recieves at least one full revolution in under 0.08 seconds&nbsp; (this is about idle rpm speed on your car to give a reference point).&nbsp; If there is another point that spins the coins fast enough, I would like to know.&nbsp; If there isn&#039;t, this means that the missing edge coins from Phillly went through the edge inscription step.&nbsp; Personally, this would seem to be the only way for so many to escape the mint.&nbsp; </p><p><br /></p><p>If it took 10 minutes for an operator to realize something is wrong with the equipment, that&#039;s 7500 coins.&nbsp; If there is nothing obvious to the operator that the equipment is malfunctioning, an operator could go on indefinitely until something obvious happens, such as a fluid leak??</p><p><br /></p><p>Just a thought.&nbsp; I will post back after I look at it under the stereoscope.&nbsp; thanks for the feedback so far.[/QUOTE]</p><p><br /></p>

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