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<p>[QUOTE=&quot;Eduard, post: 501697, member: 8959&quot;]You guys are right: salt water will not corrode a noble metal like gold.&nbsp; I have a Santiago mint 1750 &#039;Pelucona&#039; (8 escudos coin) salvaged from the Nuestra Senora de la Luz on the River Plate. The coin&nbsp; has some deposits on it, but the surfaces themselves are mainly smooth. </p><p>This coin does look rather rough. Could it be because it was &#039;tumbled&#039; at some stage? If i recall, this is an unscrupulous practice whereby gold coins would be tumbled with stones in order remove flakes from the surface. In spanish the practice (i think) is called &#039;sudado&#039; or sweating.[/QUOTE]</p><p><br /></p>

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