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<p>[QUOTE=&quot;davidh, post: 1264892, member: 15062&quot;]That will be great.&nbsp; I hope you are aware of how to handle these chemicals.&nbsp; HCl fumes will react with anything in the area so ventilation is recommended.&nbsp; FeCl3 is a corrossive and will also stain just about anything it comes in contact with.&nbsp; Rubber gloves, eye protection, ventilation, etc are <i>de rigueur.&nbsp; </i>You may need more than a small scratch on the cent.&nbsp; A filed area on the edge about 2mm square should work; you need enough area for the acid to actually get into the cent.</p><p><br /></p><p>We await your results.[/QUOTE]</p><p><br /></p>

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