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<p>[QUOTE=&quot;rlm&#039;s cents, post: 883345, member: 7957&quot;]The same way acid bring back the serial number on guns.&nbsp; The minting process changes the molecular structure of the coin (stamping process on a gun) such that the acid removes the metal around the date/serial number more easily.&nbsp; For Buffaloes, I think vinegar gives a better looking coin because it gives detail across the entire coin and does not discolor the coin like nik-a-date does.</p><p><br /></p><p>BTW, try searching vinegar or nik-a-date.&nbsp; you will get lots of results.[/QUOTE]</p><p><br /></p>

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