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<p>[QUOTE=&quot;sand, post: 24738422, member: 118540&quot;]Hello [USER=149897]@Jlewis[/USER]. Welcome to Coin Talk Ancients (and Medievals).</p><p>I&#039;m not an expert in bronze disease. I&#039;ve been collecting ancients and medievals for 5 years, but I&#039;ve never really learned to tell the difference between stable green patina versus bronze disease. I usually don&#039;t worry much about bronze disease. I have many bronze ancient coins, and many bronze medieval coins. Many of them have green patinas, or areas of green patina. I&#039;ve never had a coin, in which the green patina increased noticeably, while I owned the coin.</p><p>I have a small number of coins, which had a small bit of green patina, which looked unsightly to me because of the location of the green patina. For those few coins, I used a sharp pointy scalpel and a microscope, to scrape off the green patina. For 1 or 2 of those coins, I may have rinsed the coin with distilled water, and then wiped the coin dry with a piece of cloth, after I removed the spot of green patina. For 1 coin, I vacuumed the coin, using a drinking straw attachment, to ensure that I removed all of the little flakes of green patina which I had scraped off.</p><p>The 2 coins in your post, look okay to me. I&#039;ve bought coins with similar amounts and similar types of green patina, and I&#039;ve never worried about them.</p><p>I&#039;ve never asked a dealer, if a coin for sale has bronze disease. It&#039;s not that important to me.</p><p>However, some ancients collectors are much more worried about bronze disease, than I am. Perhaps other ancients collectors, who are more knowledgeable about bronze disease than I am, will reply in this thread.[/QUOTE]</p><p><br /></p>

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