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<p>[QUOTE=&quot;Ripley, post: 744200, member: 19199&quot;]Yeah I use a sonic cleaner in the 40,000 Hz range.&nbsp; i put ammonia and liquid soap in the solution.&nbsp; This works great.&nbsp; Then ionize the coin to bring out details.&nbsp; Then ultrasound again to get the ionization solution off the coin.&nbsp; you will have a brilliant coin if you do this right.&nbsp; Traci[/QUOTE]</p><p><br /></p>

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