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<p>[QUOTE=&quot;Colonialjohn, post: 5398826, member: 57741&quot;]Since the demise of the original Coin Care and Freon TF IMO there never has been a suitable product for cleaning coins. You also have to take into consideration the possibility of affecting the delicate mint layer, imposing hairlines in soil removal, using too rough a chemical for a certain alloy, the possibility of removing surface metal in situations of advanced corrosion, etc. so since then in EVERY chain of posts you will read there is no effective way to clean/conserve coins. Who can argue - its complex. Again contact me privately and CHALLENGE ME - with the understanding some coins are best left alone, some coins the surface corrosion is too advanced and some coins have criteria that can not be removed like black spots on copper. Read the NGC Coin Conservation submittal criteria - my limitations ARE SIMILAR on what not to submit for conservation.[/QUOTE]</p><p><br /></p>

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