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<p>[QUOTE=&quot;John Anthony, post: 2034777, member: 42773&quot;]It does no good, however, if you don&#039;t remove the BD. What most people don&#039;t understand is that BD is basically various acids coming <u>out of the coin</u> and reacting with air and humidity. It has to be thoroughly removed and then soaked in distilled water, sometimes for a very long time, in case the coin has any more acid that it needs to exude. Only after a prolonged period of soaking and checking (maybe a year) should the coin be dried and sealed.[/QUOTE]</p><p><br /></p>

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