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<p>[QUOTE=&quot;Pocket Change, post: 240205, member: 8012&quot;]I found the answer to my question about the acid process.&nbsp; I got this for a restored buffalo auction on e-bay.&nbsp; Seller is up-front about selling restored buffalos:</p><p>And I quote:</p><p>Due to poor planning in the construction of the early date Buffalo Nickels, their dates frequently wore completely away because they were too high and not protected from wear by other features on the coin, such as a raised rim. The metal where the numerals WERE on the coin, however, is of a higher density (due to the stamping process) than the surrounding metal (known as the &quot;field&quot;). Brushing a small amount of ferric-chloride over the area where the date was will often &quot;restore&quot; the date. This happens because although this &quot;acid&quot; mixture begins to erode the metal, the area where the numerals were erodes much slower than the surrounding field, so the numerals &quot;rise up&quot;, so to speak, out of the field. (The process is stopped by simply washing the acid off with water) The date that shows is the true and legitimate date the coin was minted with. Restored date coins are NOT fakes! The only real problem with restored date coins is that the area surrounding the date no longer looks totally natural. The area will appear to be a dull but very clean gray, almost as if the area by the date was cleaned with an abrasive cleanser. It is for this reason that restored date coins do not command the value of &quot;natural&quot; date coins.</p><p>End of Quote.[/QUOTE]</p><p><br /></p>

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