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<p>[QUOTE=&quot;Oldhoopster, post: 2922191, member: 84179&quot;]No question, it was subject to high heat and a bubble formed between the clad layers.&nbsp; There is also a heavy build up of heat scale on the surfaces</p><p><br /></p><p>The metal was stretched when the bubble formed, which could cause the devices to expand or narrow (depending on the location), but any difference in the dimension would be very miniscule and it would be very difficult to measure yet alone see it.</p><p><br /></p><p>It is not a mint error.&nbsp; Get a blow torch and you can make as many of these as you want.[/QUOTE]</p><p><br /></p>

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