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<p>[QUOTE=&quot;robinjojo, post: 8324721, member: 110226&quot;]How upsetting!&nbsp; I think the photo posted on eBay was processed through Photoshop.</p><p><br /></p><p>If you cannot return the coin, all is not lost.&nbsp; The areas of BD seem small.&nbsp; The other green patches seem hard, based on the photos, so there&#039;s no active corrosion going on in those places.</p><p><br /></p><p>I would take an incremental approach with this coin and soak it in distilled water for several days, inspecting it from time to time to see if the powdery area is clearing up.&nbsp; Try using a toothpick to loosen the powder.&nbsp; Be patient.&nbsp; It might take a change or two of distilled water.&nbsp; If it is turning green that means it is working.</p><p><br /></p><p>Take the coin out after that period, rinse it in distilled water.&nbsp; Some collectors recommend heating the coin to remove any residual moisture.&nbsp; I don&#039;t do that since I live in a pretty dry climate, but it is an option.&nbsp; Keep the coin out and observe it for the next few months. </p><p><br /></p><p>If the powdery residue reappears, then you might have to resort to washing soda (sodium sesquicarbonate).&nbsp; I add it to heated distilled water to a assure that it completely dissolves.&nbsp; Put the coin in the bath and follow the same procedure, with at least one daily inspection.&nbsp; You don&#039;t want to keep the coin in this bath for longer than needed, since the washing soda removes patina and BD, so don&#039;t keep the coin in the bath too long.&nbsp; Again, wash it with distilled water, dry it and observe it for again several months.&nbsp; Don&#039;t store the coin in a flip or envelope during this period.[/QUOTE]</p><p><br /></p>

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