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<p>[QUOTE=&quot;Bronwen, post: 3545490, member: 5833&quot;]Not a can of worms, a very good question.&nbsp; I just read Anna Miller&#039;s section on ultrasonic cutting &amp; she is speaking strictly about hardstone cameos.&nbsp; The figure of 80% was the estimate of one of her German informants.&nbsp; By contrast, she says the only electrical tool used by shell cutters is a dental drill.&nbsp; Shell cameo manufacturers will make the same design again &amp; again, but pieces will have the variations natural to hand work.&nbsp; The German &amp; Japanese ultrasonic pieces are cut using a template, so are identical.</p><p><br /></p><p>Think the people buying ultrasonic hardstone are buying what they like at an affordable price &amp; are not overly concerned with the production method.[/QUOTE]</p><p><br /></p>

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