CPK Posted January 28 · Supporter Share Posted January 28 Recently acquired this coin which looked as if it might have some - you guessed it - bronze disease going on. (Am I too paranoid about this??) 🙄 I thought, well, I can probably deal with it, I've done it before, so I didn't feel too apprehensive about it. The coin itself is beautiful, with a glossy dark patina and a great portrait of Tiberius. Here are the auction house photos: Upon receiving the coin I alternated scrubbing gently with a toothbrush and rubbing/picking at the stuff (under magnification) with a toothpick in distilled water. I was able to remove some of the bluish/green spots. I had several goes at the coin. Then I took my own picture - (the auction house photos didn't do the coin proper justice!) As you can see, the hard spots are gone but I'm still left with some faded color. I should stress that what spots that remain are very stubborn; I poked very hard at it with the toothpick. So I have a few questions: First, Is this BD in your opinion? Second, If so - since BD needs moisture and access to air to be active - if I blow on the coin for a long time with a hot hair dryer to remove the moisture, and seal the coin's surface with Renaissance Wax, would this prevent further damage? From what I understand, Ren Wax provides a thin hard coating on the surface and ought to prevent moisture/air from reaching it. If this is so, shouldn't it essentially "cure" any BD still there by permanently halting the process? Or am I wrong on this? I have heard of a product called Verdicare which is said to be able to "cure" bronze disease in a similar way - by sealing the surface of the coin. @Roman Collector had a thread about it awhile back. Third, If I absolutely MUST I can try soaking the coin like I did before. But I really don't want to damage the patina/appearance of this one by using sodium sesquicarbonate. Will just distilled water harm the appearance? Fourth and finally, What would you do with the coin? Thank you for any help or advice you can give! 9 Quote Link to comment Share on other sites More sharing options...
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