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<p>[QUOTE=&quot;ancient coin hunter, post: 3902321, member: 87200&quot;]I have used the olive oil soak method on late roman bronzes. It works well to soften dirt encrustations, and after soaking for a few months I was able to pull out the coins and using a toothpick and a dental pick I was able to clean some of them up, removing the dirt. So I had a beata tranquillitas type as well as a couple of gloria exercitus examples. What it does though is to impart a darker tone to the coin than it had previously, so that&#039;s one minor undesirable side-effect. Makes photographing them a bit tougher. Keep in mind that it doesn&#039;t work on the really hard encrustations that have become mineralized. </p><p><br /></p><p>And whatever you do, don&#039;t use liquid descaler on lrbs. It completely destroyed a batch of 50 coins I had soaked for 24 hours. Sometimes people recommend this treatment for a quick fix as you can see the crud being lifted off the coins while they are soaking. But what you get is wholly uncollectible.[/QUOTE]</p><p><br /></p>

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